Fly-tipping in Hadfast Road

We have a couple of witnesses to the vehicle - one followed it from Sherrifhall Park & Ride yesterday afternoon. No number plate but description of the small tipper , bright yellow & orange. Seen in the village by someone full then empty. Have contacts for these witnesses. But must be oncctv 2.45 to 3.15 pm on the route from Sherrifhall. Is on single track road so needs removed but we don't want to touch it for evidence.