Essex police have come up with a gem of a form for renewal applicants to complete. I'll post the actual form tmw,
BASCs advice is not to fill it out and report to them any demands or overzealous behaviour from police staff made in order to obtain compliance. BASC has raised this silly and pointless form with the chief constable's office. You are under no obligation legally to sign this paper nor do the police have a right to refuse to renew in the circumstances described. Illegal possession at home or outside the house is identical and the police should renew on time and not resort to creating more work, let alone inconvenience shooters this way.
The form says;
"I agree that upon expiry of my certificate/s I will ensure the firearms/shotguns in my possession remain locked within my agreed security arrangements until I am in receipt of a current certificate. I am aware that if I remove them my renewal application may be refused."