Hale, C.J.
While executing a search warrant, Spokane [50]*50police officers found two capsules of heroin on the searched premises, and one capsule of heroin on the person of defendant Jesse Patterson. They also found what the parties describe as “miscellaneous narcotics paraphernalia, and miscellaneous papers and pieces of identification” apparently connecting the defendants with the premises.
Seizing the narcotics and other articles, the officers arrested defendants Jesse Patterson and Donald Richard Morgan at the scene of the search, and the prosecuting attorney filed a complaint against them in Spokane County District Court. August 5, 1971, the prosecuting attorney superseded the district court complaint by filing an information in superior court charging Patterson and Morgan with unlawful possession of the narcotic drug, heroin.
Defendants moved to quash the search warrant and suppress the evidence seized in the search. The motion came on for hearing at the call of the regular weekly motion docket of the Superior Court for Spokane County before Judge George T. Shields who denied the motion October 15, 1971. Thereupon, the case was assigned for trial before Judge William H. Williams, to whom defendants renewed their motion to quash and suppress. Following extensive argument, the learned trial judge, concluding that the affidavit supporting the search warrant was legally insufficient because it failed adequately to set forth a probable cause for its issuance, granted the motion to quash and ordered the evidence obtained in the search suppressed. The state, by alternative writ of certiorari, now seeks an order vacating the superior court’s order quashing the search warrant and suppressing the evidence.
The search warrant, issued October 22, 1970, from “The Justice Court of the State of Washington In and For the County and District of Spokane” bore the signature of Gordon S. Lower, District Court Judge. There is no contention that Judge Lower was not a legally constituted and duly qualified and acting judicial officer, possessing all constitutional and statutory powers requisite to the issuance of [51]*51warrants for search, seizure and arrest. The search warrant recited that one James R. Albright had made complaint on oath to Judge Lower; that the complainant believed that narcotics and dangerous drugs were being unlawfully used, manufactured, sold, given away, furnished and kept on the premises of 613 South Sheridan Street, Spokane; and that the judge found reasonable and probable cause to believe the recited facts to be true. The warrant ordered peace officers to enter the premises of 613 South Sheridan Street in Spokane, and diligently search for and seize all narcotic and dangerous drugs and “furniture and fixtures used or kept for the illegal manufacture, sale, barter, exchange, giving away, furnishing or otherwise disposing” of narcotics and dangerous drugs, and to make a return to the issuing court within 3 days showing all acts done and things seized pursuant to it.
We have accepted review largely because two judges of the superior court on diverging views, in considering the sufficiency of the complaint or affidavit for the search warrant, reached differing conclusions.
The question, therefore, is whether the warrant was issued in violation of either the Fourth Amendment:
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
or article 1, section 7 of the state constitution which states:
No person shall be disturbed in his private affairs, or his home invaded, without authority of law.
More precisely, our function, therefore, after considering all of the information and the manner and form in which it was presented to the judge of the district court, is whether that court had probable cause under the constitutions to issue the warrant. A secondary but inherent question is to what extent may hearsay evidence be included in the com[52]*52plaint, affidavit or testimony upon which the warrant is sought.
Reasonableness is the key ingredient in the test for issuance of a search warrant. That is precisely what the federal constitution says and our state constitution necessarily implies. Do the, documents or testimony supporting the warrant give a fair-minded, independent judicial officer, on considering all of the facts and circumstances set before him on oath or affirmation, good reason to issue the warrant?
Good reason for the issuance of a search warrant does not necessarily^ mean proof of criminal activity but merely probable cause to believe it may have occurred. Beck v. Ohio, 379 U.S. 89, 13 L. Ed. 2d 142, 85 S. Ct. 223 (1964). Suspicion, belief and guess alone are not enough. If the affidavit contains none of the underlying facts or circumstances from which the magistrate can find probable cause and is no more than a declaration of suspicion and belief, it is legally insufficient. Nathanson v. United States, 290 U.S. 41, 78 L. Ed. 159, 54 S. Ct. 11 (1933). And, if the statements of an informant are included in the affidavit or complaint for the search warrant, probable cause means that the issuing magistrate should have before him a substantial and intelligent basis for crediting the report of the informant.
Where the informant’s identity is unrevealed, the supporting documents or testimony must provide the issuing court with a stronger basis for finding the hearsay statements credible than if the informant is identified. United States v. Harris, 403 U.S. 573, 29 L. Ed. 2d 723, 91 S. Ct. 2075 (1971). In either case, whether of revealed or unrevealed informants, the affidavits or complaint must go beyond mere conclusions that illegal activities are or have been going on in the premises to be searched (Aguilar v. Texas, 378 U.S. 108, 12 L. Ed. 2d 723, 84 S. Ct. 1509 (1964)); and mere assertions that the applicant for the warrant harbors a suspicion or belief that articles relevant to prove such activity will be found there are insufficient. Giordenello v. United States, 357 U.S. 480, 2 L. Ed. 2d 1503, [53]*5378 S. Ct. 1245 (1958); Nathanson v. United States, supra. But the issuance of a search warrant is and always has been a matter of judicial discretion, the exercise of which may be tested on review. The ultimate question on review is whether, in discharging his duties, the judicial officer who issued the search warrant abused his discretionary powers.
Does this record show that the judge of the district courf authorized an unreasonable search as that term is meant under the constitution? We think not. When an application for a search warrant is made to a judicial officer, he is obliged neither to treat the matter as an adversary proceeding, nor sua sponte to challenge the contents of the supporting documents. His is the duty to ascertain whether the warrant sought is being reasonably requested and on reasonable grounds. At that juncture, the judge is not dealing with such concepts as reasonable doubt, preponderance of the evidence, the competence of the witnesses or defendant’s rights to confrontation and cross-examination of witnesses, nor should the judge invoke other concepts of due process inherent in the Bill of Rights or the common law other than those necessarily included in the idea of reasonableness of the search. Such inquiries, if undertaken at the proceeding for the issuance of a warrant, would be premature and not only premature, but in the ordinary course of administering the criminal law would stifle legitimate investigative procedures legitimately to be carried out.
To render the people secure in their persons, houses, papers and effects and keep the police from disturbing them within the specific admonition of the Fourth Amendment and the search provisions of the state constitution, does not mean, therefore, that the application for a search warrant be converted into an adversary proceeding, or one held upon notice, or that a contest must first be arranged and then resolved. It is now, as it always has been, an ex parte proceeding. The record of the application hearing, however, must show that the search and seizure ultimately [54]*54to be authorized not only appeared to be reasonable to the issuing judge, but that it turned out to be so upon execution of the warrant. Accordingly, when the constitutions specify that no warrant may issue except upon probable cause and that the probable cause must be shown in some way or other upon oath or affirmation, they fix the ultimate standard — a reasonable basis founded on affidavit, complaint or testimony, for the search to be conducted under judicial sanction and protection.
Neither the constitutions nor the common law make an adversary proceeding out of an application for a search warrant; nor require that it be issued upon notice or be subject to hearing upon notice; nor make it subject to attack or injunction before issuance. What is intended is explicitly stated in the Fourth Amendment — to prohibit unreasonable searches and seizures, and to require that warrants for searches and seizures be issued only for probable cause and upon oath.
In other words:
[T]he Fourth Amendment’s commands, like all constitutional requirements, are practical and not abstract. If the teachings of the Court’s cases are to be followed and the constitutional policy served, affidavits for search warrants, such as the one involved here, must be tested and interpreted by magistrates and courts in a commonsense and realistic fashion. They are normally .drafted by non-lawyers in the midst and haste of a criminal investigation. Technical requirements of elaborate specificity once exacted under common law pleadings have no proper place in this area. A grudging or negative attitude by reviewing courts toward warrants will tend to discourage police officers from submitting their evidence to a judicial officer before acting.
. . . Recital of some of the underlying circumstances in the affidavit is essential if the magistrate is to perform his detached function and not serve merely as a rubber stamp for the police. However, where these circumstances are detailed, where reason for crediting the source of the information is given, and when a magistrate has found probable cause, the courts should not invali[55]*55date the warrant by interpreting the affidavit in a hyper-technical, rather than a commonsense, manner.
United States v. Ventresca, 380 U.S. 102, 108, 13 L. Ed. 2d 684, 85 S. Ct. 741 (1965).
A reasonable search is one based upon probability — a likelihood that evidence of criminal activity will be found. It does not require even a prima facie showing of guilt. Spinelli v. United States, 393 U.S. 410, 419, 21 L. Ed. 2d 637, 89 S. Ct. 584 (1969), makes this categorically clear, in saying:
[W]e do not retreat from the established propositions that only the probability, and not a prima facie showing, of criminal activity is the standard of probable cause, Beck v. Ohio, 379 U.S. 89, 96 (1964); that affidavits of probable cause are tested by much less rigorous standards than those governing the admissibility of evidence at trial, McCray v. Illinois, 386 U.S. 300, 311 (1967); that in judging probable cause issuing magistrates are not to be confined by niggardly limitations or by restrictions on the use of their common sense, United States v. Ventresca, 380 U.S. 102, 108 (1965); and that their determination of probable cause should be paid great deference by reviewing courts, Jones v. United States, 362 U.S. 257, 270-271 (1960).
Thus, when all of the circumstances as related under oath to the issuing magistrate are considered, the question of probable cause is reduced to whether there is a “substantial basis” for the warrant. The policeman’s affidavit should not be judged as an entry in an essay contest nor subjected to microscopic examination. Spinelli v. United States, supra. A search warrant is issued usually as a pretrial writ, a characteristic of it which the Supreme Court stressed in United States v. Harris, 403 U.S. 573, 582, 29 L. Ed. 2d 723, 91 S. Ct. 2075 (1971), in saying that, before trial, we deal in the “factual and practical considerations of everyday life on which reasonable and prudent men, not legal technicians, act,” and that common sense must be the ultimate yardstick. Thus, in the Harris case, where the information presented to the issuing judge appears to be less persuasive than that [56]*56in the instant case, and had been received from an unnamed person believed by the applicant to be prudent but who feared for his life if his identity was revealed, the warrant was held good. Affirming the principle that hyper-technical examination of the affidavit should be avoided and the routine procedures of police work respected, the court, in Harris, sustained the affidavit for the search warrant, saying that the court should respect the “ ‘practical consideration of everyday life’ upon which an officer (or a magistrate) may properly rely in assessing the reliability of an informant’s tip.” 403 U.S. at 583. The search warrant “must be tested ... in a commonsense and realistic fashion” for “technical requirements of elaborate specificity . . . have no proper place in this area.” United States v. Ventresca, supra at 108. Common sense, therefore, is one of the ingredients of the test of reasonableness for the issuance of a search warrant. Probable cause is neither theoretical nor illusory; unrealistic and hypertechnical standards of elaborate specificity are to be avoided. United States v. Ventresca, supra.
The constitutions do not forbid the assertion of hearsay evidence in the affidavit for a search warrant, and where the affidavit is based in part on the hearsay information supplied by an informant, the search warrant may properly issue if, on final analysis and under all of the circumstances set forth in the affidavit, complaint or testimony laid before the issuing judicial officer, a substantial basis for crediting the hearsay is found and probable cause is shown. Jones v. United States, 362 U.S. 257, 4 L. Ed. 2d 697, 80 S. Ct. 725, 78 A.L.R.2d 233 (1960); Aguilar v. Texas, supra; United States v. Ventresca, supra; Spinelli v. United States, supra. The touchstone is reasonableness of the search. State v. Edwards, 5 Wn. App. 852, 490 P.2d 1337 (1971). “It will not do to say that warrants may not issue on uncorroborated hearsay.” United States v. Harris, supra.
This court summarized the practical ingredients of probable cause in State v. Poe, 74 Wn.2d 425, 445 P.2d 196 [57]*57(1968), where, in upholding an arrest for probable cause, we said at page 429:
An officer of a narcotics detail may find probable cause in activities of a suspect and in the appearance of paraphernalia or physical characteristics which to the eye of a layman could be without significance. His action should not, therefore, be measured by what might or might not be probable cause to an untrained civilian passerby, but by a standard appropriate for a reasonable, cautious, and prudent narcotics officer under the circumstances of the moment. Bell v. United States, 254 F.2d 82 (D.C. Cir.1958).
Standards for the issuance of a search warrant, that is, standards for the inference of probable cause, are much less stringent and more widely discretionary than those for the admissibility of evidence or the pleadings in both civil and criminal proceedings. McCray v. Illinois, 386 U.S. 300, 18 L. Ed. 2d 62, 87 S. Ct. 1056 (1967). Warrants may be and frequently are sought by police officers under conditions of the utmost urgency with little time or opportunity for consultation with counsel. Supporting documents may have been hurriedly drafted by laymen while in the crucial phase of an investigation under the urgent necessity of obtaining the evidence before it is removed or destroyed. Thus, in order to preserve the evidence from imminent destruction, or obviate an impending crime, or to prevent further criminal activity, circumstances may demand that the application for a search warrant be presented to a judicial officer at late and unusual hours without counsel or prior consultation with counsel. The constitutional provisions against unlawful searches and seizures are not designed to discourage police and investigative officers from seeking the assessment of independent judicial officers, nor to compel the police to take counsel with them at all stages of their investigations. Rather, it is the design of the constitutions to encourage investigating officers to seek the intervention of judicial officers, to require whenever and wherever it is reasonably feasible that the existence or want of probable cause to enter and search a householder’s domicile [58]*58be decided prima facie by a judicial officer and not by officers of the executive branch. “It is not fit,” as Lord Mansfield put it,
that the receiving or judging of the information should be left to the discretion of the officer. The magistrate ought to judge; and should give certain directions to the officer.
Leach v. Three of the King’s Messengers, 19 How. St. Tr. 1001, 1027 (1765), cited in United States v. United States Dist. Court, 407 U.S. 297, 316, 32 L. Ed. 2d 752, 92 S. Ct. 2125 (1972). In essence, if in the considered judgment of the judicial officer there has been made an adequate showing under oath of circumstances going beyond suspicion and mere personal belief that criminal acts have taken place and that evidence thereof will be found in the premises to be searched, the warrant should be held good.
In the instant case, the affidavit presented to the Spokane District Court, we think, provided an adequate basis for a finding of probable cause. (See Appendix for the Affidavit.) It stated that affiant had been a police officer with the Spokane Police Department for 15% years and at the time of the search warrant application, a detective serving in the narcotics section of the department; that he had been given information by a federal narcotics agent whom he had known for 2 years and who had been advised by a reliable and believable informant that traffic in heroin had occurred at 613 South Sheridan Street, Spokane. The affidavit said that affiant knew that this federal narcotics agent had received information from an informant hitherto “reliable and creditable.”
The information derived from this informant as was related in the affidavit was specific and detailed: It said that one Ben Coleman, accompanied by two of his purported nephews as bodyguards, Jesse Patterson and Donald Morgan, delivered heroin to the described premises approximately once a week; and that Jesse Patterson had a reputation — as of affiant’s knowledge, we presume — as a “narcotic trafficker.” The affidavit named the three individuals who [59]*59lived at 613 South Sheridan, one of whom was Ben Coleman, the asserted heroin deliverer. The affidavit, setting forth specifics, said that, according to the informant, the occupants of 613 South Sheridan Street, Spokane, ran out of narcotics as of the morning of October 21, 1970, and expected a shipment to be delivered that night by Donald Morgan — earlier described in the affidavit as a bodyguard of Ben Coleman — in a white Lincoln Continental automobile, and that the informant had pointed out this particular automobile to the federal narcotics officer on the morning of October 22 parked in front of the identical premises, 613 South Sheridan. It stated that the same federal agent had observed these premises at 9:30 p.m. the night before, and there had been no white Lincoln Continental there. On returning later the agent saw the same or one of similar description at 11:30 p.m., October 21, parked in the driveway to the same premises. The affidavit related further specific details supporting probable cause; it said that two named detectives of the Spokane Police Vice Detail had knowledge that the premises at 613 South Sheridan were being frequented by known prostitutes, drug users and narcotic (heroin) users, and specifically named five of them.
There were other details set forth warranting a conclusion of probable cause, too. According to the affidavit, Lieutenant Richard Olberding, of the Spokane Police Narcotics Section, and presumably one of the affiant officer’s superiors in the field of investigations for violation of the narcotics law, had informed affiant that a reliable, creditable informant, known to the lieutenant for 16 years, had informed the lieutenant that he had seen known narcotic users enter the named premises at irregular hours during the interval from June 1970, until October 21, 1970, and remain there for a short period of time. And finally, the affidavit said that early in 1970 approximately 280 capsules of heroin had been found in the residence of Ida Ruth Jones, then living on East 6th Avenue, Spokane, presumably the same Ida Ruth Jones now said to be living at 613 [60]*60South Sheridan Street. This earlier seized heroin, according to the Spokane Police Department’s information, had belonged to the earlier mentioned Ben Coleman.
As was said in Beck v. Ohio, 379 U.S. 89, 13 L. Ed. 2d 142, 85 S. Ct. 223 (1964), it is only the probability of criminal activity and not a prima facie showing of it which represents the standard of probable cause. If the standards of United States v. Ventresca, 380 U.S. 102, 13 L. Ed. 2d 684, 85 S. Ct. 741 (1965), and Spinelli v. United States, 393 U.S. 410, 21 L. Ed. 2d 637, 89 S. Ct. 584 (1969), are applied, and the affidavit before us is interpreted as laid down in those cases in a “commonsense and realistic fashion,” we think that the affidavit supported the issuing judge’s discretionary finding of a probable cause of criminal activity.
In a search warrant issued under law by a judicial officer, however, there is more than the protective shield of probable cause. The written record surrounding the judicial issuance of a search warrant probably affords greater protection to the individual against abuse of power by the police than does the generalized requirement of reasonableness and probable cause. The warrant itself is a direct command to the peace officers to proceed circumspectly, to make a record of their actions in executing the search and to make a return to the issuing judge. Thus, the police must serve the warrant within the time specified in it, or within a reasonable time of its issuance or within a time specified by law; they must make a report to the court in writing particularly describing the articles .seized and describing the place or persons from whom taken.
These requirements of a written record as a basis for the warrant and a written return to the issuing judicial officer showing exactly what actions were done under its authority probably affords the individual and his house, his papers and his effects conceivably as great a protection from unwarranted police intrusion than the minimal standards of reasonableness mentioned in the constitution. For this reason, among others, the courts have consistently, in sit[61]*61ting on search warrant cases, adhered to a policy which encourages peace officers in the discharge of their duties to apply for judicial authority to make a search rather than proceed without the intervention of the courts.
Accordingly, although the constitutions protect the individual and his house, his papers and his effects from unreasonable searches and seizures, they do not prohibit reasonable searches. Whether a search with a warrant is reasonable, therefore, depends upon all of the circumstances shown to have been connected with it and as shown under oath, either in writing or orally, to the judicial officer who issued it. If the supporting evidence made under oath gives the judicial officer good cause, that is, rational grounds to believe that criminal activity or evidence in proof of it existed at the premises to be searched, the warrant on review should be held reasonably issued. The law vests a broad discretion in the judicial officer from whose offices the search warrant is sought, and while he may not apply wholly subjective standards, and the record must show the existence of objective criteria going beyond the personal beliefs and suspicions of the applicants for the warrant, the supporting affidavit or testimony must be viewed in the light of common sense and need not be expressed in formal language, nor meet the procedural and linguistic requirements of judicial pleadings, nor rise to the standards for the admissibility of trial evidence.
We are, therefore, of the opinion that the affidavit submitted to Judge Gordon S. Lower, as Judge of the Spokane County District Court, was constitutionally sufficient to sustain the judge’s discretion for finding probable cause.
Reversed with directions to vacate the order to quash the search warrant and suppress the evidence.
Finley, Hunter, Hamilton, Wright, and Brachtenbach, JJ., concur.
[62]*62Appendix
In the Justice Court of the State op Washington In and for the County and District of Spokane
State of Washington, James R. Albright Spokane Police Department,
Plaintiff,
v.
613 South Sheridan St. Spokane, Washington,
Defendant.
No. 27756
Complaint for Search Warrant for
Narcotic and Dangerous Drugs
James R. Albright, being first duly sworn on oath, deposes and says: that he is a Police Officer with the Spokane Police Department, having served with said department for the past 15% years. The affiant further states that at present he is serving as a ’ Detective in the Narcotics Section of the Spokane Police Department, of the city of Spokane, Washington.
The affiant further states that he has been informed by a Federal Narcotics Agent, whom he has known for approximately two (2) years, that he has information from a reliable and creditable informant relative to the Narcotic (Heroin) traffic at 613 South Sheridan St., Spokane, Washington.
This informant has provided information to the Federal Narcotics Agent which is as follows:
That Ben Coleman, a negro male, delivers Heroin to this address approximately once a week and is usually accompanied by two pro-ported Nephews who act as body-guards. They are identified as Jessie Patterson, a negro male, and Donald Morgan, a negro male. Jessie Patterson has a reputation with the Spokane Police Department as a Narcotic trafficker. Individuals residing at 613 South Sheridan are Ida Ruth Jones and Jo Ann Hughes (aka Jo Ann Hughs), and Ben Coleman resides at this residence when in Spokane. ■
This informant further stated that as of the morning of October 21, 1970 they were out of Narcotics at the above residence and that a shipment of Narcotics was expected in during the evening of October 21, 1970. This informant stated that a Donald Morgan would be bringing the Narcotics in and that he drives a white Lincoln Continental. On the morning of October 22, 1970 the informant pointed out Morgans Continental, which was parked in front of 613 South Sheridan, Spokane, Washington, to the Federal Narcotics Agent. The Federal Narcotics Agent was unable to obtain the license plate numbers of the vehicle at this time. This Federal Agent, at approximately 11:30 p.m., October 21, 1970 observed this vehicle, or one of similar description parked in the driveway of 613 South Sheridan, Spokane, Washington. The Federal Agent had been in the vicinity at 9:30 p.m. October 21, 1970 and this vehicle was not at this residence of 613 South Sheridan, Spokane, Washington at this time.
The affiant further states that Detectives of the Spokane Police Vice Detail, Detectives Gary Johnson and Donald McMath, have knowledge [63]*63that 613 South Sheridan, Spokane, Washington, is being frequented by known prostitutes, drug users and Narcotic (Heroin) addicts. They specifically know Louis and Jody Solomon, Gloria Tschoky, Shirly Phillips aka Shirley Chisolm, and O’Neal Chisolm aka Gomez, have frequented this residence at 613 South Sheridan, Spokane, Washington.
Wherefore, Your Affiant prays that a search warrant issue for the purpose of searching (describe premises, address, etc. or if vehicle, give make, license number, etc.) 613 South Sheridan Street, Spokane, Washington to seize all narcotic and dangerous drugs there found, pursuant to R.C.W. 10.79.015 to search for and seize any evidence material to the Felony crime of Possession of Dangerous Drugs, Sale, or Distribution thereof of any Dangerous Drugs or Narcotics.
/s/ James R. Albright Subscribed and sworn to before me this 22nd day of October, 1970.
/s/ Gordon S. Lower Justice of the Peace in and for Spokane County and District, State of Washington
Continuation of Affiants Statement.
The affiant further states that these same two (2) Detectives stated that they noticed considerable activity at the residence of 613 South Sheridan, Spokane, Washington at approximately 10:00 p.m. October 21, 1970.
The affiant further states that Lt. Richard Olberding of the Spokane Police Narcotics Section has a reliable creditable informant who he has known for approximately sixteen (16) years. This informant has advised that he has observed known Narcotics users enter the residence of 613 South Sheridan, Spokane, Washington from June 1970 until the present time, at irregular hours and staying for a short period of time.
The affiant further states that early in 1970 approximately 280 capsules of Heroin were found in the residence that Ida Ruth Jones was occupying at the time on East 6th Avenue, Spokane, Washington. This Heroin according to our information was the property of one Ben Coleman.