A serving subordinate of the UK's equipped forces has been charged with offences nether the Official Secrets Act.
Thomas Newsome, 36, was charged connected Friday with offences contrary to conception 2 and conception 8 of the Official Secrets Act 1989, Scotland Yard said.
The charges travel an probe by the Metropolitan Police's Counter Terrorism Command.
Newsome has been remanded successful custody and is to look astatine Westminster Magistrates' Court connected Saturday.
The Met said helium was initially arrested connected Tuesday and detained nether the Police and Criminal Evidence Act 1984.
A Ministry of Defence spokesperson said: "We tin corroborate the apprehension of a serving subordinate of the Armed Forces.
"This substance is the taxable of an ongoing investigation, truthful it would beryllium inappropriate to remark further."