
Cocaine
White chrystal powder, chips, chunks or rocks.
Signs of abuse: nervous behaviour, restlessness, bloody noses, and high energy.

Methamphetamine
White or slightly yellow crystal-like powder, large rock-like chunks.
Signs of abuse: nervousness, physical activity, scabs or open sores decreased appetite, and inability to sleep.

Marijuana
A green or grey mixture of dried, shredded flowers and leaves of the hemp plant.
Signs of abuse: red, blood shot eyes, poor memory rapid heartbeat loss of control hunger, and anxiety.

Khat/sugars
Leafy, flowery, green shrub.
Signs of abuse: lack of appetite, high energy aggression, psychotic behaviourisms, and irritability.

Heroin
White or dark brown powder or tar like substance.
Signs of abuse: teeth clenching, chills, sweating, dehydration, anxiety, and unusual displays of affection.