Possession: The actual, physical Possession, or the constructive Possession (which will be found only if the person has exclusive control or intends to exercise control over the Prohibited Substance/method or the premises in which a Prohibited Substance/method exists); provided, however, that if the person does not have exclusive control over the Prohibited Substance/method or the premises in which a Prohibited Substance/method exists, constructive Possession will only be found if the person knew about the pres-ence of the Prohibited Substance/method and intended to exercise control over it.