Furnishing drugs or liquor to a prisoner consists of directly or indirectly furnishing any narcotic drug or intoxicating liquor to any person held in lawful custody or confinement, unless such narcotic drug or intoxicating liquor is furnished pursuant to the direction or prescription of a regularly licensed physician attending such person or penal facility.
Whoever commits furnishings [furnishing] drugs or liquor to a prisoner is guilty of a fourth degree felony.