Question to the Home Office:

To ask the Secretary of State for the Home Department, how many (a) shotgun certificate holders and (b) firearms licence holders have been (i) charged and (ii) convicted of offences under anti-terrorism legislation in the last five years.

The Home Department publishes a quarterly statistical bulletin which gives statistics on Counter-Terrorism arrests and convictions. However information
on whether a person is a shotgun or firearms certificate holder is not collected.

www.gov.uk/government/statistics/operation-of-police-powers-under-the-terrorism-act-2000-financial-year-ending-March-2014

www.gov.uk/government/statistics/operation-of-police-powers-under-the-terrorism-act-2000-quarterly-update-to-September-2013