To establish criminal possession of dangerous drugs, the prosecution must prove beyond reasonable doubt two elements: (1) that the accused had physical custody or control over the drug, and (2) that the accused had knowledge of the presence of the drug in their possession (animus possidendi). The mere fact that drugs are found in premises where the accused has control, combined with knowledge of their presence, is sufficient to establish possession. Where cocaine is involved, the offense is particularly serious as it is a mood-altering and dangerous drug with serious health and social effects, warranting custodial sentences to discourage use and protect the community.