See the full story: Prosecutors improperly withheld crucial evidence from trial of protesters - Police and prosecutors are facing claims that they have systematically - and unfairly - concealed the operations of undercover officers from
See the full story: Prosecutors improperly withheld crucial evidence from trial of protesters – Police and prosecutors are facing claims that they have systematically – and unfairly – concealed the operations of undercover officers from the trials of protesters (Guardian, link)
And see: IPPC report on Mark Kennedy and collapsed trials – 2012 (pdf)
See also: Drax protesters’ undercover police case convictions quashed (Statewatch database) and: 2014 Judgment – full-text (pdf)