R.I. Gen. Laws § 21-31.1-15: Detention.

Whenever an authorized representative of the director encounters a prescription veterinary drug in the possession of a person who is not authorized by § 21-31.1-13, the representative may affix to the drug a tag or other appropriate marking, warning all persons not to remove or dispose of the drug by sale or otherwise until permission is given for removal or disposal by the director or the court.