(UK) Horden shootings: killer held six gun licences

[friendly_iconoclast]

30. And efficacy can only be determined in retrospect, and reasonableness is subjective.

I'd argue the only measure for efficacy of firearms law can be crime rates. Certainly, I'd find it annoying to have to go get fingerprinted by the local constabulary in order to buy a rifle or shotgun, but my annoyance is tempered by two things: 1) If I'm not disqualified under law, I will get a firearms ID card
(as would any other Massachusetts adult) , and 2) There's a low rate of gun crime in general, and long gun crime in particular in Massachusetts.

The FID card requirement for long guns may or may not be effective, as many other states that don't have it have similarly low rates of crime involving
long guns. But it is transparent, objective and minimally intrusive, so it's unobjectionable on Constitutional grounds.