U.K. police: Let us seize encryption keys

PCs of suspected terrorists, pedophiles gather dust as investigators struggle to decrypt hard-drive data, they say.

Because British law enforcement officers don't have the authority to seize encryption keys, an increasing number of criminals are able to evade justice, a senior police officer said.

Suspected terrorists, pedophiles and burglars have all walked free because encrypted data couldn't be opened, Detective Chief Inspector Matt Sarti of the Metropolitan Police said Monday during a public meeting in London.

"There are more than 200 PCs sitting in property cupboards which contain encrypted data, for which we have considerable evidence that they contain data that relates to a serious crime," Sarti said. "Not one of those suspects has claimed that the files are business-related, and in many cases, the names of the files indicate that they are important to our investigations."

Earlier this summer, the British government announced that it plans to activate Part 3 of the Regulations of Investigatory Powers (RIP) Act, which will give the police the power, in some circumstances, to demand an encryption key from a suspect.

Part 3 of the RIP Act has been heavily criticized in the past by some security professionals and academics who believe that it is a dangerous and badly written piece of legislation that cannot be properly implemented.

Sarti was speaking at an open meeting to discuss the Home Office consultation about the draft code of practice for Part 3 of the RIP Act, which will govern how its powers can be used.

The meeting was organized by the Foundation for Information Policy Research.

Casper Bowden, a former director of the FIPR who led the fight against the introduction of the RIP Act several years ago, said during the meeting that Part 3 is flawed because defendants could be prosecuted for simply losing an encryption key.

"The burden of proof is on the suspect to prove that they don't have the key, and if they fail, they go to prison. But if they can give an explanation for not having the key, then the prosecution must prove beyond reasonable doubt that they are lying," Bowden said.

Bowden explained that in circumstances when the police suspected someone had encrypted incriminating data, officers could issue an order under Section 49 of the act, ordering the suspect to hand over the key. Failure to do so could lead to a prosecution under Section 53 of the Act.

But Simon Watkin of the Home Office, who drafted the code of practice, insisted that the time is right to activate Part 3 of the Act as the police are finding that their investigations are being thwarted by encryption.

"The police have come to us and said that they need powers to get hold of encrypted data off suspects," Watkin said. "We've got a law like this on the statute book, and we've been waiting for people like them to come and give us compelling reasons why they need it."

One police officer in the audience argued that in the case of alleged child abuse, it was vital to access all the files on a suspect's machine so that the victims could be identified.

But Duncan Campbell, an investigative journalist who has served as an expert witness in many computer-related trials, insisted that Part 3 of the RIP Act could not be justified.

"A person who rapes and damages a 12-year-old is going to get a bloody long sentence, and bloody good, too. What's the point in the police saying, 'We need a monstrous law so we can get to the rest of the data'?" Campbell asked.

The consultation on the draft code of practice will run until Aug. 31, and Watkin indicated that submissions received after that date will still be considered. You can see the code of practice on the Home Office Web site.

Graeme Wearden of ZDNet UK reported from London.

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