Since, despite having 293 references (impressive) he failed to reference any of the following:

Having control over rifle and handgun owners through a licensing system, the police began inventing their own conditions to put on licenses.

After the 1996 Dunblane shootings, some police forces began performing spot checks on persons who already held Firearms Certificates. Apparently the home searches were done to make sure that the firearms really were locked up.

Parliament never granted the police home inspection authority, nor did Parliament enact legislation saying that a hardened safe is the only acceptable storage method.

However, that is what the police in many jurisdictions require anyway. In fact, many gun owners who bought safes that the police said were acceptable are now being forced to buy new safes because the local police have arbitrarily changed the standards. In many districts, an "acceptable safe" is now one that can withstand a half-hour attack by a burglar who arrives with a full set of safe-opening tools.

Other parts soon began to be enforced immediately, by police fiat.

Furthermore, if a policeman has a personal interest in the shooting sports, that interest may disqualify him from being assigned to any role in the police gun licensing program. Policemen who know virtually nothing about guns, but who can be counted on to have a hostile attitude towards gun owners, are often picked for the gun licensing jobs.