They loves them some non lethal methods, them fine dutiful police persons. Upstanding bastions of peace and civility.
... and you are all the more likely to behave yourself because of it ?
I can imagine the keyboards of the future. In order to use them one will have to link a biometric ID checking lead from the keyboard to a conductive wristband (with optional clips for other areas if that is your warped preference) and every link you attempt that is on the "naughty" list, a suitably leveled shock is returned instead.
Oh, and every time you type something nice, a lovely voice will exclaim from the bowels of the machine "that's a Good Citizen ... your country is proud of you" or "thank you for thinking of the children" ala "thank you for choosing value wrap" from the PC game "SystemShock2". :)
regarDS