Nick Clegg has hinted at support for a full judicial inquiry into claims Britain may have been complicit in torture if current police and parliamentary probes fail to provide sufficient answers.
An inquiry into potential British knowledge or involvement in the poor treatment of detainees was paused, pending police investigations.
However, it raised 27 areas that required further investigation, which are now being looked at by the parliamentary Intelligence and Security Committee.
Clegg said he was absolutely sure that torture presently "cannot, will not and is not being used under any circumstances by British agencies or indeed on our behest".
Asked later if the UK had sought any elements detailing British activity to be blacked out of the US Senate's report into CIA interrogation techniques, a Number 10 spokeswoman said: "My understanding is that no redactions were sought to remove any suggestion that there was UK involvement in any illegal torture or rendition.
"There was a conversation between the agencies and their US counterparts on the executive summary. Any redactions there would have been on national security grounds."
A former US Vice President has condemned a shocking report into interrogation techniques used by the CIA, slamming it as "full of crap".
While it seems beyond the realms of possibility now, things can change, what is unlikely now is conceivable in 30 years time.
Shocking details about the CIA's "brutal" interrogation techniques have been laid bare. (Note: graphic descriptions may cause upset)