http://www.statewatch.org/asbo/ASBOwatch.html
"ASBOs criminalise non-criminal behaviour. Their use is being actively promoted to all local authorities throughout England and Wales by the Home Office which has now begun to deploy 'ASBO ambassadors' to speed up their adoption. For the authorities with whom the ASBO has already found favour, it has not taken long for them to push the parameters for which it was originally intended. This stems largely from the vagueness of the government's definition of what constitutes 'anti-social behaviour' (see above).
From an original remit of tackling low-level nuisance behaviour such as vandalism and abusive neighbours, local authorities and police forces have found ASBOs to be a hugely effective tool for quashing many other challenges to authority. Here environmental and political protesters, in particular, have found themselves subject to temporary orders and other powers introduced under the Anti-social Behaviour Act. Protesting now appears to be both an anti-social and potentially criminal act. "