United States v. Sturm

560 F. Supp. 2d 1021, 2007 U.S. Dist. LEXIS 36222, 2007 WL 1453108
CourtDistrict Court, D. Colorado
DecidedMay 17, 2007
DocketCriminal Case 06-CR-00342-LTB
StatusPublished
Cited by4 cases

This text of 560 F. Supp. 2d 1021 (United States v. Sturm) is published on Counsel Stack Legal Research, covering District Court, D. Colorado primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States v. Sturm, 560 F. Supp. 2d 1021, 2007 U.S. Dist. LEXIS 36222, 2007 WL 1453108 (D. Colo. 2007).

Opinion

MEMORANDUM OPINION AND ORDER

BABCOCK, Chief Judge.

The defendant, Kenneth Dean Sturm, was indicted of one count of possession of a firearm after conviction of a felony, 18 U.S.C. § 922(g)(1), and one count of possession of child pornography, 18 U.S.C. § 2252A(a)(5)(B). I previously severed the two counts to avoid undue prejudice and Mr. Sturm pled to the former. The latter count is predicated upon a photograph contained on a CD-ROM disc taken from Mr. Sturm’s residence. Other computer media allegedly containing illicit pictures may comprise evidence admissible at trial under Fed.R.Evid. 404(b).

By his Motion for Order Directing the Government to Provide Copy of Evidence for Purposes of Independent, Confidential and Complete Examination by the Defense in the Exercise of Mr. Sturm’s Constitutional and Statutory Rights, Mr. Sturm requests bit-by-bit copies of all computer-generated media, including discs and hard drives, containing evidence that the Government intends to introduce at trial. The Government responds that copying is prohibited under the Adam Walsh Child Protection and Safety Act of 2006 (“Walsh Act”). I have the benefit of the parties’ briefs and evidence taken at a hearing on May 15, 2007. For the reasons stated below, I DENY the motion.

I. Findings of fact

The witnesses were notable both for their credibility and for their knowledge of the pertinent technologies and legal standards. Three agents of the United States Bureau of Immigrations and Customs Enforcement (“ICE”) testified for the Government. For Mr. Sturm Raymond Moore, the Federal Public Defender for the Districts of Colorado and Wyoming, testified.

A. Special Agent Anna Wells

ICE Special Agent Anna Wells averred that the photograph identified in the indictment depicts a child victim known to the Government; it was not generated by manipulation of computer media. Many other pictures contained in temporary internet folders within Mr. Sturm’s computers, which the Government intends to introduce under Rule 404(b), depict actual children, though the geneses of some pictures remain unknown.

Agent Wells testified that each digital picture possesses a “hash value,” a unique digital signature consisting of a series of letters and numbers, generated by a mathematical algorithm. Pictures of known child victims are identified primarily by their hash values, which are referenced against a database of known contraband. Identification is confirmed by visual comparison of the suspect photograph with known photographs.

Agent Wells stated that the Government has produced to Mr. Sturm’s counsel all requested discovery except contraband depictions. Defense counsel received a copy of ICE’s forensic report, which lists the pictures allegedly discovered on Mr. Sturm’s hard drive and discs. Since passage of the Walsh Act, ICE has provided copies of prurient pictures to neither the United States Attorney’s office nor defense counsel. This policy includes attorneys of the Federal Public Defender’s office. Media remains in the custody of ICE and attorneys examine the pictures only in the presence of federal agents. In this case, Agent Wells brought a compact disc containing pictures to the Assistant United States Attorney for his examination before the commencement of grand jury proceed *1023 ings, but did not allow the disc out of her possession and returned with it to the ICE office after the examination was complete.

On October 12, 2006, defense counsel, an Assistant Federal Public Defender, examined the photographs at the ICE office. The review lasted approximately ten minutes, occurred in an open cubicle, and was not restricted by any protective order. Defense counsel did not ask to be placed in a private room and had no questions for Agent Wells.

Defense counsel has not requested that ICE make the media available for a forensic evaluation at the ICE office. Agent Wells speculated that an evaluation by a defense expert would likely last “several hours.” The expert would be given complete privacy in a secluded room if the expert signed a stipulation promising not to copy any of the pornographic depictions. Otherwise, the expert would conduct any analysis under the supervision of an ICE agent. Defense counsel in this case has not asked to establish a procedure by which any defense expert might examine the media at issue.

B. Senior Special Agent Richard Stoffregen

Senior Special Agent Richard Stoffre-gen, a Computer Forensic Examiner with ICE, described the process for creation of a digital duplication or copy, known as a “bit-by-bit image,” of original computer media. A bit-by-bit image enables forensic examiners to examine segments of data found on an original hard drive or other media source without altering the source. To obtain one, the examiner employs a write-block hardware device, which inhibits transfer of data to the source media, then acquires the data from the source and copies it onto a storage device, such as a second hard drive. Forensic analyses are then conducted on the bit-by-bit image contained within the second device. One such analysis involves employing software called “EnCase” to acquire and verify the hash values of any data in the bit-by-bit image.

Agent Stoffregen affirmed that, since enactment of the Walsh Act, ICE no longer produces to defense counsel or defense experts bit-by-bit images of computer media containing child pornography. Instead, ICE Agents make the bit-by-bit images available for inspection in a private room designated for the purpose, provided that the inspector signs a stipulation promising not to copy any contraband depictions. Defense experts may use either a stand-alone computer provided by ICE or their own computers, which they can connect to the hard drive. Standard forensic software, such as EnCase or a program called “VM Ware,” facilitates the forensic analyses most commonly undertaken — to verify that the bit-by-bit image is what it purports to be. In the unlikely event that defense experts do not have these software programs, ICE is able to provide them. The expert is given complete privacy in the room. ICE agents do not enter the room unless asked and do not attempt to discern what the defense expert is doing or has done. Agent Stof-fregen makes himself available to answer questions and attempts to provide any requested assistance.

Agent Stoffregen places no limit on the duration of any defense examination and makes the bit-by-bit image available for return visits. Defense experts are permitted to duplicate everything on bit-by-bit copies — registry files, hard drive data, Windows data, passwords, software contained on the hard drive and data concerning its use — the sole exception being contraband.

Twice since enactment of the Walsh Act Agent Stoffregen has followed this procedure to enable defense experts to review *1024 computer media. On one occasion a defense expert conducted analyses for two or three days.

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234 P.3d 169 (Washington Supreme Court, 2010)
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528 F. Supp. 2d 103 (E.D. New York, 2007)
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521 F. Supp. 2d 1097 (E.D. California, 2007)

Cite This Page — Counsel Stack

Bluebook (online)
560 F. Supp. 2d 1021, 2007 U.S. Dist. LEXIS 36222, 2007 WL 1453108, Counsel Stack Legal Research, https://law.counselstack.com/opinion/united-states-v-sturm-cod-2007.