The Governor may offer a reward for apprehending and securing any person convicted of an offense or charged therewith, who shall have escaped from lawful custody or confinement, or for apprehending and securing any person charged with an offense, who, there is reason to fear, cannot be arrested in the common course of proceeding. The Governor may also offer a reward for the detection and conviction of the person guilty of an offense when such offense has been committed but the person guilty thereof is unknown.
Any sheriff, deputy sheriff, sergeant, deputy sergeant or any other officer may claim and receive any reward which may be offered for the arrest and detention of any offender against the criminal laws of this or any other state or nation.
Va. Code § 19.2-7