Wiltshire Police are challenging the licence of the festival - which has been held at Charlton Park near Malmesbury since 2007 - following a disagreement with the organisers over policing the event.
Smith said the event, due to be held from July 27-29, will see private security used if no agreement with police is reached.
He said: "We don't want to go ahead without the police, but where we are at the moment is the police have said they are ...
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