Whoever, without authority, with the intention of converting to his own or another's use, willfully conceals a book or other library property, while still on the premises of such library, or willfully or without authority removes any book or other property from any of the above libraries or collections shall be deemed guilty of larceny thereof, and upon conviction thereof shall be punished as provided by law. Proof of the willful concealment of such book or other library property while still on the premises of such library shall be prima facie evidence of intent to commit larceny thereof.
Va. Code § 42.1-73