...The law recognizes two kinds of possession, actual possession and constructive possession.... Even when a person does not actually possess an object, he may be in constructive possession of it. Constructive possession exists when a person knowingly has the power and the intention at a given time of exercising dominion and control over an object or over the area in which the object is located. The law recognizes no distinction between actual and constructive possession, either form of possession is sufficient. Possession of an object may be established by either direct evidence or by circumstantial evidence. It is not necessary to prove ownership of the object,...