You can get a 2 year trip to prison for contempt of court if you refuse to decrypt your devices for the court. > The Regulation of Investigatory Powers Act 200

You can get a 2 year trip to prison for contempt of court if you refuse to decrypt your devices for the court. > The Regulation of Investigatory Powers Act 2000 (RIPA), Part III, activated by ministerial order in October 2007,[20] requires persons to supply decrypted information and/or keys to government representatives with a court order. Failure to disclose carries a maximum penalty of two years in jail https://en.wikipedia.org/wiki/Key_disclosure_law#United_Kingdom https://en.wikipedia.org/wiki/Key_disclosure_law#United_King... You can read the full law here: https://www.legislation.gov.uk/ukpga/2000/23/part/III https://www.legislation.gov.uk/ukpga/2000/23/part/III