Mr Liddiard campaigned to block the festival from being held at Strathallan.
An anti-T in the Park campaigner was arrested following an alleged disturbance at the festival’s Strathallan Castle site.
Mark Liddiard, who lives on the estate, is accused of being involved in a heated row with a construction crew as they worked on an underground pipeline near his home.
The 54-year-old had earlier led a hard-fought campaign to block the music festival moving to Strathallan.
He was one of the first to raise concerns about potential impacts on roads and wildlife.
Police confirmed that a man had been charged following an incident during the run-up to last weekend’s show.
The event, which drew around 80,000 people to the Auchterarder site, was hailed as a success by organisers but deeply marred by a spate of traffic problems which have placed a question mark over the event’s future.
