Child pornography targeting software doesn’t have to be shown to be all that reliable to establish probable cause for a search warrant. United States v. Naylor, 2015 U.S. Dist. LEXIS 19760 (S.D.W.Va. February 19, 2015) [Look, if a 25% reliability rate for a dog is PC, then why not this? PC is a really low threshold. I hate to admit it, but it is.]:
As noted, the warrant application included Sergeant Divita’s sworn statement that her colleague, Sergeant Eldridge, had examined an exact copy of the Lolita’s House file in the media library and found it to contain minors engaged in sexually explicit conduct. The file content is described with particularity. Respecting the availability of the file for download by other peers, Sergeant Eldridge noted it had been offered for distribution by the target computer on January 15, 2014. These allegations produced a fair probability that contraband or evidence of a crime would be found on the target computer.
None of Mr. Naylor’s challenges cast any doubt on this conclusion. First, the fact that Sergeant Eldridge failed to download the Lolitas House video is of no moment. Based upon a garden-variety knowledge of hash value characteristics, he was warranted in concluding that the Lolitas House video was an exact match for the same file archived in the media library, a file that contained a profound amount of child pornography.
Second, a sufficient showing has been made to warrant Fourth Amendment confidence in the CPS software. Sergeant Eldridge has used the CPS software for six years. Fifty of the hundreds of child pornography cases to which he has been assigned have involved use of the CPS software. On those occasions, the CPS software has proven to be 100% reliable.
There is simply no basis to challenge the integrity of the software in light of this track record. The CPS software appears to be a reliable investigative tool for law enforcement in these types of cases.
Third, it is of no consequence that the Lolitas House video was not found during a forensic examination of Mr. Naylor’s hard drive. There are multiple reasons that the file may have disappeared. It could have been deleted and then overwritten or moved, directly or following download, to an external storage device. The absence of the file does not diminish the showing of probable cause.
Fourth, the fact that only 25.52% of the Lolitas House video was shown on the spreadsheet on January 15, 2014, does not indicate Sergeant Eldridge or Sergeant Divita made a recklessly false statement within the warrant application. Inasmuch as another user may begin downloading a fellow user’s partially downloaded file, there is no basis for concluding any statement in the warrant application misstated or stretched the truth. In a related vein, Sergeant Eldridge could confidently conclude that 25.52% of the file included child pornography inasmuch as that portion of the file would have captured at least some measure of child pornography based upon his percentage allocation after viewing the exact duplicate of the file in the media library.
by John Wesley Hall
Criminal Defense Lawyer and
Search and seizure law consultant
Little Rock, Arkansas
Contact: forhall @ aol.com / The Book www.johnwesleyhall.com
"If it was easy, everybody would be doing it. It isn't, and they don't." —Me
"Life is not a matter of holding good cards, but of playing a poor hand well." –Josh Billings (pseudonym of Henry Wheeler Shaw), Josh Billings on Ice, and Other Things (1868) (erroneously attributed to Robert Louis Stevenson, among others)
“I am still learning.” —Domenico Giuntalodi (but misattributed to Michelangelo Buonarroti (common phrase throughout 1500's)).
"Love work; hate mastery over others; and avoid intimacy with the government."
—Shemaya, in the Thalmud
"It is a pleasant world we live in, sir, a very pleasant world. There are bad people in it, Mr. Richard, but if there were no bad people, there would be no good lawyers."
—Charles Dickens, “The Old Curiosity Shop ... With a Frontispiece. From a Painting by Geo. Cattermole, Etc.” 255 (1848)
"A system of law that not only makes certain conduct criminal, but also lays down rules for the conduct of the authorities, often becomes complex in its application to individual cases, and will from time to time produce imperfect results, especially if one's attention is confined to the particular case at bar. Some criminals do go free because of the necessity of keeping government and its servants in their place. That is one of the costs of having and enforcing a Bill of Rights. This country is built on the assumption that the cost is worth paying, and that in the long run we are all both freer and safer if the Constitution is strictly enforced."
—Williams
v. Nix, 700 F. 2d 1164, 1173 (8th Cir. 1983) (Richard Sheppard Arnold,
J.), rev'd Nix v. Williams, 467 US. 431 (1984).
"The criminal goes free, if he must, but it is the law that sets him free. Nothing can destroy a government more quickly than its failure to observe its own laws,
or worse, its disregard of the charter of its own existence." —Mapp
v. Ohio, 367 U.S. 643, 659 (1961).
"Any costs the exclusionary rule are costs imposed directly by the Fourth Amendment."
—Yale Kamisar, 86 Mich.L.Rev. 1, 36 n. 151 (1987).
"There have been powerful hydraulic pressures throughout our history that
bear heavily on the Court to water down constitutional guarantees and give the
police the upper hand. That hydraulic pressure has probably never been greater
than it is today."
— Terry
v. Ohio, 392 U.S. 1, 39 (1968) (Douglas, J., dissenting).
"The great end, for which men entered into society, was to secure their
property."
—Entick
v. Carrington, 19 How.St.Tr. 1029, 1066, 95 Eng. Rep. 807 (C.P. 1765)
"It is a fair summary of history to say that the safeguards of liberty have
frequently been forged in controversies involving not very nice people. And
so, while we are concerned here with a shabby defrauder, we must deal with his
case in the context of what are really the great themes expressed by the Fourth
Amendment."
—United
States v. Rabinowitz, 339 U.S. 56, 69 (1950) (Frankfurter, J., dissenting)
"The course of true law pertaining to searches and seizures, as enunciated
here, has not–to put it mildly–run smooth."
—Chapman
v. United States, 365 U.S. 610, 618 (1961) (Frankfurter, J., concurring).
"A search is a search, even if it happens to disclose nothing but the
bottom of a turntable."
—Arizona
v. Hicks, 480 U.S. 321, 325 (1987)
"For the Fourth Amendment protects people, not places. What a person knowingly
exposes to the public, even in his own home or office, is not a subject of Fourth
Amendment protection. ... But what he seeks to preserve as private, even in
an area accessible to the public, may be constitutionally protected."
—Katz
v. United States, 389 U.S. 347, 351 (1967)
“Experience should teach us to be most on guard to
protect liberty when the Government’s purposes are beneficent. Men born
to freedom are naturally alert to repel invasion of their liberty by evil-minded
rulers. The greatest dangers to liberty lurk in insidious encroachment by men
of zeal, well-meaning but without understanding.”
—United
States v. Olmstead, 277 U.S. 438, 479 (1925) (Brandeis, J., dissenting)
“Liberty—the freedom from unwarranted
intrusion by government—is as easily lost through insistent nibbles by
government officials who seek to do their jobs too well as by those whose purpose
it is to oppress; the piranha can be as deadly as the shark.”
—United
States v. $124,570, 873 F.2d 1240, 1246 (9th Cir. 1989)
"You can't always get what you want /
But if you try sometimes / You just might find / You get what you need."
—Mick Jagger & Keith Richards
"In Germany, they first came for the communists,
and I didn't speak up because I wasn't a communist. Then they came for the Jews,
and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists,
and I didn't speak up because I wasn't a trade unionist. Then they came for
the Catholics and I didn't speak up because I wasn't a Catholic. Then they came
for me–and by that time there was nobody left to speak up."
—Martin Niemöller (1945) [he served seven years in a concentration
camp]
“You know, most men would get discouraged by
now. Fortunately for you, I am not most men!”
---Pepé Le Pew
"The point of the Fourth Amendment, which often is not grasped by zealous officers,
is not that it denies law enforcement the support of the usual inferences which
reasonable men draw from evidence. Its protection consists in requiring that
those inferences be drawn by a neutral and detached magistrate instead of being
judged by the officer engaged in the often competitive enterprise of ferreting
out crime."
—Johnson
v. United States, 333 U.S. 10, 13-14 (1948)
