Another link, this time from
Law Firm Directory
Quote -
The police have the right to ban all processions or a specific class of procession in a local area for up to three months, by applying for a banning order. This is commonly done when a local police Chief Constable believes that police would be unable to prevent serious public order if a march was allowed to go ahead.
Outside London, banning orders are provided by the local council and can be made subject to a judicial review if it is felt the correct process for assessing the march for a banning order was not followed.
So we should make it plain to the Chief Constable that he might not consider the disorder at the last march was 'serious' but the residents do, and the number of arrests and type of offence support this.