Police investigation into BT's 2006 and 2007 Trials (Crime Reference 5253/08)

On Tuesday 2nd September 2008 City of London Police questioned BT about the Trials: "City of London police questioned BT earlier this week as part of a probe into the covert wiretapping and profiling of the internet use of tens of thousands of BT customers during tests of Phorm's adware system." The City of London Police's crime reference number for this was 5253/08.

On Monday 22nd September 2008, City of London Police stated that they would not open a criminal investigation into the BT Trials because there was no criminal intent on behalf of BT and Phorm, and there would have been a level of implied consent from BT's customers. They also suggested that redress could be sought from the Office of Surveillance Commissioners, even though this organisation only has jurisdiction over surveillance carried out by public authorities. BT is not a public authority.

Crown Prosecution Service Complex Casework Centre Investigation

On 25th November 2008, NoDPI reported that the case was being reviewed by Andrew Hadik of the Crown Prosecution Service Complex Casework Centre. NoDPI began a campaign to get people to write to the Complex Casework Centre urging them that it was in the public interest to prosecute BT for their covert trials of Phorm's technology in 2006 and 2007.

On 29th November 2008, in an article headlined CPS investigates BT over internet trials, the Daily Telegraph reported that:
The Crown Prosecution Service (CPS) is investigating claims that BT broke privacy laws by using an internet advertising system with the potential to track and record every website visted by its customers."

Crown Prosecution Service declines to prosecute

On Friday 8th April 2011, more than two years after the case was passed to them, the UK Crown Prosecution Service announced that they would not consent to a request from an individual to begin a prosecution of BT Group Plc and Phorm Inc in relation to alleged unlawful interception of internet browsing data.

The CPS's conclusions were questionable:

Their statement contained factual inaccuracies:

Their statement contained some irrelevant diversions:

Their statement appeared to set some unusual legal precedents:

As a result, it is unlikely that the criminal complaint has yet reached its conclusion.