"In early July we visited many farms and shooting estates in both cull zones that we know are involved in the slaughter of badgers. We searched for, and found, vulnerabilities we'll be able to use later. In 3 of these places we decided to take action that night. A blend of bleach and caustic substances were poured into the red diesel stores. Not only will this cause damage to the fuel system of machinery but we know the owner of one of these sites illegally uses red diesel in his 12 Reg Audi car.
We delayed reporting this to ensure the red diesel would have been used."