"A European Court of Human Rights (ECtHR) judgment in January, in a case brought by veteran peace campaigner John Catt, is extremely significant for the future of protest surveillance."
See: UK: It’s Time to Close Down the Police’s “Domestic Extremism” Databases (Netpol, link):
“For seven years John has argued that the decision by the police to retain extensive surveillance data about him on the secretive National Domestic Extremism Database was a violation of his privacy.”