‘The criminal conviction of a campaigner is to be quashed after prosecutors admitted an undercover police officer gave evidence in a court case using a fake identity. Michael Gracia’s conviction for assaulting an officer during a pro-cycling demonstration is to be overturned as prosecutors conceded one of the co-defendants at his original trial was working undercover for the police.’
The Guardian, 23rd June 2015
Source: www.guardian.co.uk