In my early days in police, I was an undercover police officer. A lot of criminals had guns, but they didn't used to bring them out, because they were hard won; they were status symbols, and the last thing you wanted to do was lose it, because you couldn't replace it. Police would often use the leverage of that to get firearms back—to get people bail, to get other favours that criminals needed. That all stopped when, all of a sudden, firearms became so easy to replace that either they no longer became a status symbol or they no longer became a commodity to trade. So what we've got to do is actually stop the supply of firearms to those criminals. Again, I know that, although we've been together till now, with Ms Nicole McKee, registering firearms is an absolutely logical thing to do, because any criminal found with a firearm—we've got good modern techniques. Someone will be responsible for actually how they ended up there.