Some 20 people still remain on Lincolnshire Police’s search list in connection with an illegal rave at Twyford Woods, Colsterworth, in May.
A number of names were passed to the enquiry team and officers are thanking members of the public for passing on information.
However, investigating officers say there is” still a lot of work to be done”, and have reappealed for assistance from the public to identify those pictured below.
Thirteen people have already been charged in relation to the incident and a further six people were cautioned for possession of drugs. Court hearings are pending.
Work is ongoing to find those responsible for criminal offences during the event, which included violent disorder, assault on police, criminal damage, dealing in drugs, failing to stop for police, and failing to abide by direction to leave.
At one point some three hundred officers from neigh borough forces were involved in the policing response.
Anyone with information regarding the appeal should call 101 quoting incident 137 of September 11.