The Government must reform the way MI5, MI6 and GHCQ are held to account and "must not continue to bury its head in the sand," civil rights campaigners warned.
Emma Carr, acting director of Big Brother Watch, said:
When a senior committee of Parliament says that the current oversight of our intelligence agencies is not fit for purpose, ineffective and undermines the credibility of Parliament, the Government cannot and must not continue to bury its head in the sand.
This report is a wake-up call to those blindly parroting the line that the UK has the best oversight system in the world.
The law is out of date, the oversight is weak and the reporting of what happens is patchy at best.
More top news
Jamie Oliver and health experts have been asked to help the Government in tackling the problem of obesity in primary school children.
A £265 million payout is being shared by thousands of BT workers as savings schemes mature, with some employees landing more than £54,000.
Former shadow chancellor Ed Balls has revealed he turned down an offer to go on ITV reality show I'm A Celebrity... Get Me Out of Here!