Drug testing is to be carried out in nightclubs following alarm at the discovery of new psychoactive substances and superstrength ecstasy pills at Electric Picnic.
A pilot HSE scheme at the festival earlier this year found three new types of drugs among the 46 handed in by members of the public.
These were 3-CMC and 5-MAPB (both similar to amphetamines) and 4-HO-MiPT (akin to LSD).