We have been fighting for transparency and stronger regulation of the use of IMSI catchers by law enforcement in the UK since 2016. The UK police forces have been very secretive about the use of IMSI catchers – maintaining a strict “neither confirm nor deny” (NCND) policy. In our efforts to seek greater clarity we wrote to the UK body which monitors the use of covert investigatory powers, the Investigatory Powers Commissioner’s Office (IPCO), asking the Commissioner to revisit this…