Power to the people

Yet again (yawn) our wonderful rulers are proposing devolving power from central government not just to local government but to local communities and volunteer groups (no doubt so they can get things done on the cheap yet claim the credit). But I'm all for this if it means that when the local gypos cr#p in your front garden or dump their sofa on your school playing field, or when a bunch of their teenage thugs nick sweets worth less than £75 from your local post office, scaring the sh#t out of your daughter in the process, and the police don't give a toss, you can gather a bunch of local community volunteers and beat the same sh#t out of them. Can't, somehow, see it happening, however.
It was recently reported that one of the country's more radical muslims has suggested sharia-lawkeeping should be permitted in their local communities. I wonder how the authorities would react if a band of their community volunteers were to take the local gypos in hand by severing a few.
Anyone got a pile of false beards and ethnic hats?