OPINION
COCHRAN, J.,
delivered the opinion of the Court
in which PRICE, WOMACK, JOHNSON, and KEASLER, JJ., joined.
We granted appellant’s petition for discretionary review to determine whether the elected district attorney was disqualified from prosecuting appellant for intoxication manslaughter because he had represented her in a prior DWI case. Appellant [298]*298claims that her due-process rights were violated because the district attorney used “confidential information” that he had obtained during his prior representation against her in this case.1 Although this is a close case and we are sensitive to the ethical issues involved, we agree with the court of appeals that there is “no evidence that the State’s attorney used any confidential information” in appellant’s prosecution on the current charge.2 Thus we affirm the judgment of the trial court and of the court of appeals, both of which had denied appellant’s due-process claim.
I.
In late 2005, appellant was indicted for murder and intoxication manslaughter. She filed a pretrial Motion to Disqualify State’s Prosecutor, alleging that the district attorney had represented her “in a prior case involving similar facts and issues” in 2002. During a pretrial hearing, appellant testified that Gary Young, the elected County and District Attorney of Lamar County, had represented her in a felony intoxication-assault charge that was reduced to DWI three years earlier. She testified, “He was privileged to my criminal history” and background information. Both on cross-examination of appellant and through Gary Young’s testimony, it was established that appellant’s criminal history was public record and was contained in the current intoxication-manslaughter offense report. Concerning appellant’s “background,” Mr. Young testified, “We will introduce the judgment and sentence as it relates to those cases.” The trial court denied appellant’s motion.
Appellant pled guilty to the second-degree felony of intoxication manslaughter and true to a single felony enhancement paragraph.3 At the jury trial on punishment, the State introduced a pen packet that showed appellant had prior felony convictions for delivery of a controlled substance, burglary, and robbery in 1994, as well as credit card abuse in 1995. She also had misdemeanor convictions for DWI in 2000, DWLS, public intoxication, and disorderly conduct in 2001, another DWI (second offense) in 2002, and theft by check in 2003.
Steve Burrows, a long-time friend of appellant, then testified that he and the fifty-year-old appellant were at his mother-in-law’s home drinking beer and cognac on the night of October 8, 2005. Mr. Burrows fell asleep on the couch and when he woke up well after midnight, appellant was loud, abusive, and intoxicated. Around 7:00 a.m., Mr. Burrows decided to drive appellant to her mother’s home, but, once they were in the car, she became violent, hitting Mr. Burrows and grabbing the steering wheel. She pulled the mirror off of the windshield and tried to hit him with it. It was hard to drive, so Mr. Burrows pulled into a parking lot, parked his truck, and walked around for about fifteen minutes. When he returned, appellant had calmed down, so he drove her to her parents’ home and then returned to his own house. [299]*299A little later, appellant returned to Mr. Burrows’s house and yelled at him before she drove off “pretty fast” down the street.
Harold Adams testified that he was stopped at the intersection of Collegiate and Clarksville Streets that morning when “a car came shooting up behind me extremely fast.” The car almost hit him as it passed on the right going 75-85 m.p.h. Mr. Adams saw the car appear to run a red light and then turn left. As Mr. Adams followed, he heard sirens and saw that an accident had occurred.
Erin McDowell testified that she was on her way to church when a car passed her on the left going 85-95 m.p.h. Then she came upon the debris of an accident and saw a man lying in the road. She stopped her car. Appellant came up to her, grabbed her by the shoulders, very upset, and said, “Oh, my God,” numerous times. Appellant appeared remorseful.
Officer Foreman went to the accident scene and found a car with a motorcycle wedged up in front of it. Harley Dale Nelson, the victim, was lying on the road several hundred feet behind the car and his motorcycle. His head was “dislocated” from his spine. Officer Foreman knew Mr. Nelson because they had both worked at the Campbell Soup facility for years.
Officer Whitacker arrived, blocked the traffic with his patrol car, and then talked to appellant. He could tell that she was intoxicated, but she was complaining about glass in her eye, so Officer Whitacker had an ambulance take her to the hospital. He followed and saw her acting very belligerently. “She was using profanities, screaming, yelling, hollering. She would get kind of calm, and she would get out of control.” He ordered a blood sample to be taken, and the test results showed that appellant had a .24 blood-alcohol level, as well as cocaine in her system. She refused all medical treatment, so Officer Whitacker drove her to the police department, although she was still acting “out of control.”
William Hindman, appellant’s former father-in-law, testified for the defense that appellant was “very cordial and very courteous” to him and his wife, who were raising her eleven-year-old son, Tanner. Mr. Hindman explained that he and his wife were raising Tanner because both appellant and her former husband were incarcerated at the time Tanner was born, and he just stayed with them from then on. According to Mr. Hindman, Tanner and Tanner’s brother, Tyler, have a good relationship with appellant. Apellant has not contributed any money for Tanner’s clothes, food, schooling, or medical care, but she has bought him things for Christmas. Although Mr. Hindman has seen appellant intoxicated on “several” occasions, he has never seen her intoxicated in front of Tanner.
Appellant’s 80-year-old aunt testified that appellant “was a good sweet girl always to me, kind and sweet to me and all the members of our family.” Ever since high school she has had a problem with alcohol, but “[s]he tried hard to overcome it.”
Nelda Crawford, Appellant’s mother, a retired school teacher, testified that appellant has a drug and alcohol problem. She did not approve of appellant’s lifestyle, but she did and would still try to help her. She visits her every Sunday, and appellant has shown remorse. In 2002, appellant was involved in an accident involving alcohol in which she drove her car through a woman’s house. She was injured very badly and had to stay in the hospital five weeks. Nonetheless, she continued to drink and was on pain pills because of the injury to her eye and back from the accident. Mrs. Crawford testified that on October 9th, appellant snuck into her home, [300]*300got her car keys, stole her car, and killed a man with it.
Appellant took the stand and testified that she pled guilty to intoxication manslaughter because she wanted to take responsibility for her actions. She admitted that she had been an alcoholic and drug abuser since she was fifteen. She used heroin, heavy opiates, pain killers, cocaine, speed, and tranquilizers.
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OPINION
COCHRAN, J.,
delivered the opinion of the Court
in which PRICE, WOMACK, JOHNSON, and KEASLER, JJ., joined.
We granted appellant’s petition for discretionary review to determine whether the elected district attorney was disqualified from prosecuting appellant for intoxication manslaughter because he had represented her in a prior DWI case. Appellant [298]*298claims that her due-process rights were violated because the district attorney used “confidential information” that he had obtained during his prior representation against her in this case.1 Although this is a close case and we are sensitive to the ethical issues involved, we agree with the court of appeals that there is “no evidence that the State’s attorney used any confidential information” in appellant’s prosecution on the current charge.2 Thus we affirm the judgment of the trial court and of the court of appeals, both of which had denied appellant’s due-process claim.
I.
In late 2005, appellant was indicted for murder and intoxication manslaughter. She filed a pretrial Motion to Disqualify State’s Prosecutor, alleging that the district attorney had represented her “in a prior case involving similar facts and issues” in 2002. During a pretrial hearing, appellant testified that Gary Young, the elected County and District Attorney of Lamar County, had represented her in a felony intoxication-assault charge that was reduced to DWI three years earlier. She testified, “He was privileged to my criminal history” and background information. Both on cross-examination of appellant and through Gary Young’s testimony, it was established that appellant’s criminal history was public record and was contained in the current intoxication-manslaughter offense report. Concerning appellant’s “background,” Mr. Young testified, “We will introduce the judgment and sentence as it relates to those cases.” The trial court denied appellant’s motion.
Appellant pled guilty to the second-degree felony of intoxication manslaughter and true to a single felony enhancement paragraph.3 At the jury trial on punishment, the State introduced a pen packet that showed appellant had prior felony convictions for delivery of a controlled substance, burglary, and robbery in 1994, as well as credit card abuse in 1995. She also had misdemeanor convictions for DWI in 2000, DWLS, public intoxication, and disorderly conduct in 2001, another DWI (second offense) in 2002, and theft by check in 2003.
Steve Burrows, a long-time friend of appellant, then testified that he and the fifty-year-old appellant were at his mother-in-law’s home drinking beer and cognac on the night of October 8, 2005. Mr. Burrows fell asleep on the couch and when he woke up well after midnight, appellant was loud, abusive, and intoxicated. Around 7:00 a.m., Mr. Burrows decided to drive appellant to her mother’s home, but, once they were in the car, she became violent, hitting Mr. Burrows and grabbing the steering wheel. She pulled the mirror off of the windshield and tried to hit him with it. It was hard to drive, so Mr. Burrows pulled into a parking lot, parked his truck, and walked around for about fifteen minutes. When he returned, appellant had calmed down, so he drove her to her parents’ home and then returned to his own house. [299]*299A little later, appellant returned to Mr. Burrows’s house and yelled at him before she drove off “pretty fast” down the street.
Harold Adams testified that he was stopped at the intersection of Collegiate and Clarksville Streets that morning when “a car came shooting up behind me extremely fast.” The car almost hit him as it passed on the right going 75-85 m.p.h. Mr. Adams saw the car appear to run a red light and then turn left. As Mr. Adams followed, he heard sirens and saw that an accident had occurred.
Erin McDowell testified that she was on her way to church when a car passed her on the left going 85-95 m.p.h. Then she came upon the debris of an accident and saw a man lying in the road. She stopped her car. Appellant came up to her, grabbed her by the shoulders, very upset, and said, “Oh, my God,” numerous times. Appellant appeared remorseful.
Officer Foreman went to the accident scene and found a car with a motorcycle wedged up in front of it. Harley Dale Nelson, the victim, was lying on the road several hundred feet behind the car and his motorcycle. His head was “dislocated” from his spine. Officer Foreman knew Mr. Nelson because they had both worked at the Campbell Soup facility for years.
Officer Whitacker arrived, blocked the traffic with his patrol car, and then talked to appellant. He could tell that she was intoxicated, but she was complaining about glass in her eye, so Officer Whitacker had an ambulance take her to the hospital. He followed and saw her acting very belligerently. “She was using profanities, screaming, yelling, hollering. She would get kind of calm, and she would get out of control.” He ordered a blood sample to be taken, and the test results showed that appellant had a .24 blood-alcohol level, as well as cocaine in her system. She refused all medical treatment, so Officer Whitacker drove her to the police department, although she was still acting “out of control.”
William Hindman, appellant’s former father-in-law, testified for the defense that appellant was “very cordial and very courteous” to him and his wife, who were raising her eleven-year-old son, Tanner. Mr. Hindman explained that he and his wife were raising Tanner because both appellant and her former husband were incarcerated at the time Tanner was born, and he just stayed with them from then on. According to Mr. Hindman, Tanner and Tanner’s brother, Tyler, have a good relationship with appellant. Apellant has not contributed any money for Tanner’s clothes, food, schooling, or medical care, but she has bought him things for Christmas. Although Mr. Hindman has seen appellant intoxicated on “several” occasions, he has never seen her intoxicated in front of Tanner.
Appellant’s 80-year-old aunt testified that appellant “was a good sweet girl always to me, kind and sweet to me and all the members of our family.” Ever since high school she has had a problem with alcohol, but “[s]he tried hard to overcome it.”
Nelda Crawford, Appellant’s mother, a retired school teacher, testified that appellant has a drug and alcohol problem. She did not approve of appellant’s lifestyle, but she did and would still try to help her. She visits her every Sunday, and appellant has shown remorse. In 2002, appellant was involved in an accident involving alcohol in which she drove her car through a woman’s house. She was injured very badly and had to stay in the hospital five weeks. Nonetheless, she continued to drink and was on pain pills because of the injury to her eye and back from the accident. Mrs. Crawford testified that on October 9th, appellant snuck into her home, [300]*300got her car keys, stole her car, and killed a man with it.
Appellant took the stand and testified that she pled guilty to intoxication manslaughter because she wanted to take responsibility for her actions. She admitted that she had been an alcoholic and drug abuser since she was fifteen. She used heroin, heavy opiates, pain killers, cocaine, speed, and tranquilizers. She explained that in the 1993 robbery incident she and her ex-husband were withdrawing from Dilaudids and taking Valium to alleviate the symptoms, and that made them do something really stupid: They went into a drugstore and she gave the druggist a threatening note saying, “Give me your Dilaudid,” while her husband held his finger in his jacket like he had a gun. On direct examination, she explained that she lost her left eye in the 2002 DWI accident in which she hit a house. Appellant knew that she did not have to testify, but she explained,
I wanted an opportunity to tell the family how sorry I am. I wake up every morning and I’m very sorry for what’s happened and I wish I could take it back but I can’t. When Mrs. Nelson [the deceased’s wife] was on the stand yesterday afternoon, she touched my heart. I’m sorry, very sorry to have deprived you and your daughters and your granddaughters of a big part of your life, and I would do anything if I could to change it, but I can’t. I’m sorry. That’s why I wanted to testify. I just wanted an opportunity to tell the family that I’m sorry.
She admitted that she was very intoxicated and had cocaine in her system at the time of the accident. And she said that she was very argumentative because she “was under the influence of sleeping medication, pain killers, extreme amounts of alcohol.” Appellant admitted that when she gets out of jail, she continues drinking.
The jury sentenced appellant to ninety-nine years’ imprisonment and a $10,000 fine. Appellant then filed an amended motion for new trial, alleging that “Gary Young utilized in this trial confidential information, both privileged and unprivileged client information, about the Defendant’s previous drug and alcohol use, and her prior alcohol-related conviction.” She claimed that the use of this information constituted a blatant conflict of interest and a due-process violation.
The trial judge held an evidentiary hearing on the issue. He ordered the district attorney to turn over his original client file from the 2002 DWI case to appellant’s current attorney, and he reviewed the State’s entire case file from this prosecution in camera to see if there was any information relevant to the conflict-of-interest issue in it. The trial judge asked appellant’s attorney if he had found anything in Mr. Young’s 2002 file that he could identify as being confidential information that would have been used against appellant, but counsel never pointed to any specific information in that file.
Before hearing testimony, the trial judge stated, “The thing that I want to hear is — we can speculate from now on about what might have been, but I think it’s your obligation and your client’s obligation to come forward and tell us what it is she thinks [Gary Young] used. It’s not enough just to say he was my lawyer once upon a time. Most of what happened in that case was a matter of public record.”
Appellant called Mr. Young to testify. He stated that he had represented appellant in the 2002 intoxication-assault case, and that he negotiated a plea bargain with the State to reduce the charge to DWI (second offender). Gary Young testified that his client file had been in storage and [301]*301that he did not look at it before the intoxication-manslaughter trial. The file did contain Mr. Young’s personal notes with some specific details about appellant’s use of alcohol, cocaine, and marihuana as it related to the 2002 incident, but Mr. Young testified that all of this information could easily be found in the 2002 police offense report.
Mr. Young spent a total of four hours on the case and did not interview any witnesses. The two cases had a common thread: Both involved driving and intoxication by alcohol and cocaine. Mr. Young agreed that he learned in the 2002 case that appellant had been combative and abusive to her caregivers in that case, just as she was after the present accident. But Mr. Young testified that appellant did not tell him that she had been combative or abusive; that information was in the medical records that the State gave him. During his representation of appellant, she did not discuss anything about her children or tell him that her children’s grandparents took care of them.
Appellant then testified and said that, in the 2002 case, she had told Mr. Young, “I had left my home that morning to go and get more drugs, and that I was under the influence from the night before of crack and marijuana and alcohol.” She said that it came out in this trial that she was not able to take care of her children and that she had told Mr. Young back in 2002 that she lived with her parents and that they took care of her and one of her sons. She told him about the prior robbery by threat: “I told him what I would normally ... tell someone about that is that my ex-husband, my husband at the time, was the one who went in and robbed the drugstore[.] I was with him so by the law of parties in the State of Texas, I was considered to be just as guilty as he was. But in my mind, I didn’t feel like I was guilty.” She agreed that it is no secret that she has a drug and alcohol problem and that her mother even testified to a thirty-year history of such abuse.
The trial court entered extensive findings of fact on the conflict-of-interest issue.4 In his conclusions of law, the trial [302]*302judge stated, inter alia, “No confidential information was used by Mr. Young in the prosecution of the Defendant in the above and titled case” and “No Due-process violation occurred.”
On direct appeal, appellant claimed that the district attorney violated her due-process rights because he had represented her in a “substantially similar case” and “cross-examined her on the underlying facts from the prior case and on criminal history and substance abuse related information he learned as counsel in the prior case.”5 The court of appeals set out a lengthy description of the trial testimony and the testimony developed at both the hearing on the motion to disqualify and the hearing on the amended motion for new trial.6 Based upon its thorough review of all the testimony, the court of appeals concluded: “We do not find support for Lan-ders’ claims in the reporter’s record.”7
The court of appeals noted that, although Mr. Young had asked her about the circumstances surrounding the 1993 robbery and whether she was blaming her entire criminal history on her substance abuse problems, “a state prosecutor would have been entitled to ask Landers about the specific circumstances of any of her prior criminal offenses, as well as how those crimes were committed and how they impacted the victims.”8 The court of appeals further noted that appellant had herself testified about these matters' — all of which were of public record — on direct examination.
The court of appeals distinguished its earlier decision in In re Goodman,9 In that case, the defendant could point to “unique and confidential information” that Mr. Young had gained during his former representation of Mr. Goodman that, if used in prosecuting his former client, would present a “genuine threat” to Good[303]*303man’s due-process rights.10 But in the present case, each item that appellant claimed was the product of confidential information used by Mr. Young actually came from an entirely separate source— medical records that the State had already obtained in 2002, public criminal records that the State had obtained both in 2002 and 2005, appellant’s own testimony, and the testimony of her witnesses.11 The court of appeals held that “[b]ecause we find no evidence that the State’s attorney used any confidential information in the prosecution of Landers for this current charge, we affirm the trial court’s judgment.” 12
II.
A. The Standard of Review
The standard of review for disqualification of the prosecutor by the trial court is whether the court abused its discretion.13 The trial court abuses its discretion only when the decision lies “outside the zone of reasonable disagreement.”14 In reviewing the historical facts upon which the trial court’s ruling on a motion to disqualify is based, an appellate court “should afford almost total deference to a trial court’s determination of the historical facts that the record supports especially when the trial court’s fact findings are based on an evaluation of credibility and demeanor.”15 When the defendant contends that the lower court erred in applying the law to the trial court’s findings, the review is de novo.16
B. The Applicable Legal Principles
In Texas, the elected district or county attorney “shall represent the state in all criminal cases in the district courts of his district and in appeals therefrom, except in cases where he has been, before his election, employed adversely.”17 The office of a district attorney is constitutionally created and protected; thus, the district attorney’s authority “cannot be abridged [304]*304or taken away.” 18 In State ex rel. Hill v. Pirtle, we held that “[a] trial court may not disqualify a district attorney or his staff on the basis of a conflict of interest that does not rise to the level of a due-process violation.” 19
If a prosecuting attorney has formerly represented the defendant in the “same” criminal matter as that currently being prosecuted, he is statutorily disqualified.20 The Legislature has decreed that this conflict of interest is both obvious and actual, and we have so held.21 Thus, for example, if a prosecutor has previously represented a defendant in a burglary guilty-plea proceeding, he is statutorily disqualified from representing the State in a later probation revocation of that same burglary case.22 For a prosecuting attorney to “switch sides” in the same criminal case is an actual conflict of interest and constitutes a due-process violation, even without a specific showing of prejudice.23 This has been called a “hard and fast rule of disqualification.”24
But in the context of a conflict-of-interest claim that does not involve pri- or representation in the same criminal matter, the rule is somewhat different. A district attorney is not automatically disqualified from prosecuting a person whom he had previously represented, even when it is for the same type of offense.25 In that context, a due-process violation occurs only when the defendant can establish “actual prejudice,” not just the threat of possible [305]*305prejudice to his rights by virtue of the district attorney’s prior representation.26 Actual prejudice would occur, for example, if:
1. The prosecuting attorney has previously personally represented the defendant in “a substantially related matter”;27 and
2. The prosecuting attorney obtained “confidential” information by virtue of that prior representation which was used to the defendant’s disadvantage.28
This rule is like that adopted by the Supreme Court of North Carolina in State v. Camacho:29
We hold that a prosecutor may not be disqualified from prosecuting a criminal action in this State unless and until the trial court determines that an actual conflict of interests exists. In this context, an “actual conflict of interests” is demonstrated where a District Attorney or a member of his or her staff has previously represented the defendant with regard to the charges to be prosecuted and, as a result of that former attorney-client relationship, the prosecution has obtained confidential information which may be used to the defendant’s detriment at trial.30
Although the North Carolina Supreme Court defined an “actual conflict of interest” in a slightly different way — requiring that the former representation concerned the same charges as the current prosecution — the purport is the same: the defendant must show an actual, not theoretical, conflict of interest based on the likely use of confidential communications.
The disqualification rule is somewhat different in civil cases in which private attorneys may be disqualified merely upon a showing that the attorney had previously represented the adverse party in “a substantially related matter.”31 This [306]*306disqualification is based largely upon “the guidance” given by Rule 1.09(a)(3) of the Texas Disciplinary Rules of Professional Conduct which states, “Without prior consent, a lawyer who personally has formerly represented a client in a matter shall not thereafter represent another person in a matter adverse to the former client ... if it is the same or a substantially related matter.”32 But, as we recently noted, “there is no requirement in the civil context that the failure to disqualify counsel must rise to the level of a due-process violation[.]”33 And with civil law firms, there is no constitutional or statutory authority mandating that a particular attorney represent a particular client as is true for the district attorney, who shall represent the State in all criminal matters in his jurisdiction “except in cases where he has been, before his election, employed adversely.”34 Further, in a prior plurality opinion, we have held that a trial court “is without legal authority” to disqualify an elected district attorney solely on the basis of a violation of the Texas Disciplinary Rules of Professional Conduct.35
1. “Substantially related” matters. The Texas Supreme Court has held that “two matters are ‘substantially related’ within the meaning of Rule 1.09 when a genuine threat exists that a lawyer may divulge in one matter confidential information obtained in the other because the facts and issues involved in both are so similar.” 36 In the context of criminal matters, a prosecutor cannot be disqualified from [307]*307prosecuting a former client if the criminal trials are not closely or substantially related.37
Prosecution for the same type of offense does not, by itself, make the two proceedings substantially related.38 The question is whether the same or inextricably related facts, circumstances or legal questions are at issue in both proceedings, not whether both charges are for the same criminal offense,39 or both offenses involve guns, drugs, or other specific facts.40 “The substantial relationship test is not a formalistic inquiry into degrees of closeness, but is in large measure a judgment as to whether the former client’s confidences are at risk of being turned against him.”41
2. The use of “confidential communications.” The second prong, “confidential communications,” includes [308]*308both privileged and unprivileged client information which the prosecutor learned by virtue of the former attorney-client relationship, but it excludes information that is generally known.42 This exclusion of “generally known” information makes sense. If the client information is a matter of public record or is already generally known to other people, then the expectation of harm resulting from the prosecutor’s subsequent use of the information is small.43 As a policy matter, it is inappropriate to disqualify an elected public official because he obtained publicly available information from a client rather than from other public sources. And it elevates form over substance to permit a former client to restrict a prosecutor’s duty to represent the State if he is privy only to information from his former client that is “generally known.”44 Furthermore, “a prosecutor is obliged to see ... that any sentence imposed is based on all unprivileged information known to the prosecutor.”45
With that general background, we turn to the present case.
III.
Appellant argues in this Court that the court of appeals misinterpreted the term “confidential information” in holding that her due-process rights were not violated by Mr. Young’s prosecuting her in this intoxication manslaughter punishment trial when he had represented her in a prior DWI plea proceeding. She claims that “[t]he State gained an illicit and tremendous advantage because the prosecutor’s personal knowledge of confidential information allowed him to paint the Appellant in cross-examination in as poor a light as possible.”46
She argues that, because Mr. Young first learned of the details contained within the 2002 DWI police offense report and in her medical records (con[309]*309tained in the State’s file of the 2002 DWI proceeding) during his prior representation, that information was “confidential.” Thus, she asserts that the court of appeals misapplied the law in stating that
the record also shows that Young’s awareness of Landers’ alcohol and cocaine use (as factors contributing to the 2002 accident) were already known by the police, as those items were specifically mentioned in the official report. Any substitute prosecutor for the current case could easily obtain a copy of the 2002 police report and learn of Lan-ders’ prior alcohol and substance abuse problems. As such, Young’s knowledge is neither unique nor confidential.47
Appellant apparently assumes that if the client is the first person to tell an attorney about a certain fact, it is necessarily “confidential information,” even though the same facts might be broadcast on television, radio, the newspaper headlines, or a police offense report. This is simply not true. “Confidential information” is, by definition, information that is available only to authorized persons; it is “classified,” “privileged,” “private,” “secret,” “restricted.”48 Rule 503(a)(5) of the Texas Rules of Evidence defines a “confidential communication”:
A communication is “confidential” if not intended to be disclosed to third persons other than those to whom disclosure is made in furtherance of the rendition of professional legal services to the client or those reasonably necessary for the transmission of the communication.49
If the information conveyed to the attorney is also made known to others or is discovered by a third person through independent means, it is not confidential.50
In the present case, it was certainly no secret that appellant had a drug and alcohol problem: Her former father-in-law testified to that fact, as did her aunt, her mother, and she herself. She told the jury that she had been an alcoholic and a drug abuser since she was fifteen. The fact that she may have also revealed that same history to Mr. Young in 2002 did not convert it into a confidential communication.51
Appellant’s medical records and the offense report detailing her 2002 DWI accident and injury were also given to Mr. Young by the State in 2002. The fact that appellant might have told Mr. Young about the same information that was given to him by the prosecutor in 2002 did not [310]*310convert that public information into a confidential communication.52
Neither at trial nor on appeal has appellant pointed to any information that Mr. Young learned or might have learned during his 2002 representation that was not already in the public domain and testified to by appellant’s own witnesses. The trial court explicitly found that, “At no time was privileged information from the 2002 representation used against Defendant” and “All of the information used to prepare for trial in this matter was a matter of public record or public knowledge or available to any prosecutor from law enforcement sources.” The record supports these factual findings.53
Appellant’s real complaint is that it simply was not fair that the district attorney, who had represented her in the past, should be allowed to cross-examine her about either that prior offense54 or her background. Indeed, discretion being the better part of valor, an experienced district attorney might well err on the side of caution and voluntarily disqualify himself from representing the State in the criminal prosecution of a former client, but neither trial nor appellate courts can patrol the outskirts of the possible appearance of impropriety by a duly elected district attorney.55 A district attorney may be disqualified only for a violation of the defendant’s due-process rights, not for violations of the disciplinary rules of professional conduct alone.56
Because appellant failed to show that her due-process rights were violated, we affirm the judgment of the court of appeals.
[311]*311KELLER, P.J., filed a concurring opinion.
MEYERS, J., filed a dissenting opinion in which HOLCOMB, J., joined.
HERVEY, J., concurred.