Joshua Cammidge, 31, will appear before a court on Thursday accused of two offences under the National Security Act. British national Joshua Cammidge, 31, was arrested under the National Security Act and has been charged with assisting Russian intelligence agencies. Key points and original sources are listed below.

• Joshua Cammidge, 31, will appear before a court on Thursday accused of two offences under the National Security Act.S1

• British national Joshua Cammidge, 31, was arrested under the National Security Act and has been charged with assisting Russian intelligence agencies.S2