An assembly, unlicensed by the local authority, of 20 or more people, partly or entirely in the open air, at which amplified music is played during the night and is likely to cause serious distress to local inhabitants. Under the Criminal Justice and Public Order Act 1994 a police officer of at least the rank of superintendent may issue directions to participants to leave if it is reasonably believed that two or more people are preparing for a rave or ten or more people are waiting for one to start or are already participating in an event that will attract 20 or more participants. A summary offence is committed by anyone (excluding the occupier, a member of his family, and an employee or agent) who fails to leave as soon as reasonably practicable or who re-enters within seven days; it is punishable by up to three months' imprisonment and/or a fine on level 4. A uniformed police officer may arrest without warrant anyone refusing the leave. He may also stop and turn back within five miles of a rave anyone whom he believes to be travelling to the rave. Failure to comply is a summary offence punishable by a fine on level 3.
There are supplementary powers of entry for the purpose of clearing the land and seizing and removing vehicles and sound equipment. Any sound equipment under the control of a person convicted under these provisions may be made the subject of a forfeiture order.