"The second condition is that an order must be necessary to protect persons in any place in England and Wales from further anti-social acts by the defendant. In chapter 2 it was pointed out that, with orders on conviction, an additional factor has to be considered, namely the impact of the sentence on the necessity for an order, since the one may make the other unnecessary. It is suggested that relevant considerations will be: (1) the nature and length of the sentence; (2) its likely effect on the defendant; (3) the nature, length and effect (if any) of previous sentences; (4) the duration, conditions and likely effect of any period of licence."