You really have to contact the police
Guide on Firearms Licensing Law
1.10.
In the event of death of owner
In the event of the death of a certificate holder the
person inheriting the effects
must surrender
or declare the weapons to the police or a registered firearms dealer. Failure to do so would
result in the inheritor being in breach of the law by having the firearms in their possession; it is
the responsibility of the inheritor to find out whether firearms are part of the deceased effects.
Registered firearms dealers will be able to advise on the value of the items and how best to
proceed in accordance with the inheritor’s wishes. Options include applying for a firearms licence,
selling/transferring the firearm (to a museum or collector) or destroying it