Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what instrument is used to check for radioactive contamination on personnel as they leave the reactor compartment in the reactor compartment tunnel at HM Naval Base Clyde Faslane.

All staff exiting controlled radiation areas at HM Naval Base Clyde are monitored and controlled in accordance with approved written procedures. Our safety management arrangements, through the use of portable or installed monitors, are compliant with the Ionising Radiations Regulations 2017. The instrumentation used will depend a number of factors, including the nature of the work and the type of contamination being measured.