Rob Evans, Paul Lewis and Owen Bowcott report:
An 88-year-old campaigner has won a landmark lawsuit against police chiefs who labelled him a “domestic extremist” and logged his political activities on a secret database.
The ruling by three senior judges puts pressure on the police, already heavily criticised for running undercover operatives in political groups, to curtail their surveillance of law-abiding protesters.
The judges decided police chiefs acted unlawfully by secretly keeping a detailed record of John Catt’s presence at more than 55 protests over a four-year period.
Read more on The Guardian.