Section 2: Meaning of "psychoactive substances" etc
Subsection (1) defines a "psychoactive substance" for the purposes of the Act as any substance which is capable of producing a psychoactive effect in a person who consumes it and is not an exempted substance (as defined in section 3).
	Subsection (2) provides that a substance produces a psychoactive effect in a person if, by stimulating or depressing the person’s central nervous system, it affects the person’s mental functioning or emotional state.  The main effect of psychoactive substances is on a person’s brain, the major part of the central nervous system. By speeding up or slowing down activity on the central nervous system, psychoactive substances cause an alteration in the individual’s state of consciousness by producing a range of effects including, but not limited to: hallucinations; changes in alertness, perception of time and space, mood or empathy with others; and drowsiness.
	Subsection (3) provides that an individual consumes a substance if the individual causes or allows the substance, or fumes given off by the substance, to enter the individual's body in any way. For example, this includes injecting, eating or drinking, snorting, inhaling and smoking.