A lot of people seem to have signed a petition to have the rioters/looters lose their benefits.
The thing is, quite a few of the rioters have jobs. Some of them civil servant positions or teachers or teaching assistants, hairdressers etc. apparently, so they won't lose anything.
And... if they take away the benefits of those on benefits, it gives them even more reason to go out and steal.
What I think they should have is highly visible and symbolic punishment. Fines and unpaid community service for those with jobs, and community service for those without jobs like cleaning up the dog crap and chewing gum, scrub walls and shutters, right in front of everyone in their community, for several months. Make them give something back to the communities they just trashed.
In medieval times, people were punished in front of everybody in the stocks (for public humiliation) or on the gallows (for severer crimes). This showed everyone that punishments really were carried out and not just hearsay, and the public got to see the horrible things that happen to you if you do wrong and are caught. That's got to be a better deterrent than what we have now which is basically not seen, hardly ever carried out since the prisons are full, the community doesn't see the perps get their due, and the criminals sometimes get more protection than the victims. Even more importantly back then, the public punishments made sure that everyone else mentally distanced themselves from the wrongdoers, who were the object of ridicule rather than someone everyone sided with - which is what's the problem in this case (a significant amount of people say they 'understand the looting', or that they wished they'd took part in it too, even people I've talked to!). The mental pressure of being the one in the spotlight and being disliked, hated and humiliated in front of everyone is probably the greatest deterrent of all. Our system is so soft at the moment, nobody is put through anything like that, and kids and criminals know it's a breeze to get caught. "Nothing happens to you", "the prisons are full".
Well, if the prisons are full, then humiliate them. In front of everyone. Have them do the worst clean-up jobs under watch so that everyone can see what they will be doing for nine months after every day in the street, with a day-glo jacket on that says what you are on it and why you are being punished. Seriously.
Looting is currently cool for these people, and maybe they will be seen as cool for doing it by their friends. Make it uncool by having them do this for as long as it takes to get it into their heads, and have the community acknowledge them all for what they did.
Except of course for those men who are now suspects in murder and manslaughter - the death of three men run down in a car and another elderly man who was attacked by a 22-year old... these should be treated as murder cases and I'm sure they will be.