A UNITE activist whose son was convicted of assaulting a police officer in clashes at the Balcombe fracking site led the opposition yesterday against the dangerous dash for gas. 

Denyze Harris told delegates how she would be back in court with her son next month as he appeals against his suspended sentence. 

She described video footage played in his first trial that showed him put a hand on the shoulder of a cop bearing down on a friend who had fallen to the ground.