Experts have now confirmed what was already proven by pictures. The police put OC gas (pepper gas) into the water of the water cannons that is a highly chemical substance causing first degree burns. The company that produces this substance, Jenix, has confirmed that these substances have been in used in TOMAs (water cannons) for years in Turkey, especially in Southeastern Turkey (Kurdistan), Istanbul and Ankara. Apparently there is a separate tank in each TOMA for additional substances and the police can decide on how much of it they use. Now a discussion has unfolded on the question of they went over the acceptable dosage.