(3) Paragraphs (a), (b), (c), & (d) of s.16(2) are placed sequentially reflecting the normal progress of a police investigation into, for example, drug trafficking, and its ultimate resolution with conviction. As the investigation progresses, and greater certainty arises, the requirements in paragraphs (a) to (d) change from suspicion, to belief and to the fact of the property being tainted. The situation becomes one where the requisite belief can be asserted as opposed to suspicion. That sequential analysis is supported by s.15(4), a provision relied upon by counsel for the respondents. It provides that if a restraining order has been made on the basis of a police officer suspecting on reasonable grounds that the property is tainted (s.16(2)(a)) and, subsequently, a person is charged with a Schedule 2 offence in relation to which the restrained property or interest is tainted property (s.15(2)(c)), the restraining order can have added to it, or substituted, the purpose for which the property interest is restrained. This lends support to the conclusion that Parliament did not consider it appropriate, and therefore did not intend, that s.16(2)(a) be used or available where a person is subsequently charged or convicted.