SKUNK - is the generic name often used by the press and police to describe a potent form of the cannabis plant. In fact skunk is only one of 100 or so varieties of cannabis plant which have high levels of tetrahydrocannabinol (THC). Skunk can cause heightened hallucinogenic effects, and the strength and speed can sometimes catch out inexperienced users. Many report that the 'stoned' effect can come on rapidly and be disabling. There is also growing evidence of a link between the use of skunk and mental illness. Possible symptons include: paranoia, depression, lethargy and violence.