LINCOLN, Neb. (AP) — The owners of two Lincoln businesses face federal charges that they conspired to acquire and sell synthetic marijuana and commit other crimes.

Court documents unsealed Tuesday say that between October 2013 and April this year, Allen Peithman Jr., Sharon Elder and Jacie Sanne bought and sold synthetic cannabinoids that were mislabeled to avoid drug regulations. The stores are Dirt Cheap and Island Smokes.

Prosecutors say drug labels didn’t suggest the drugs were not intended for human consumption, and the labels didn’t include federally required warnings of possible side effects.

Elder’s lawyer, Bob Creager (KREE’-gur), declined to comment Wednesday. Online court records don’t list the names of attorneys who could be contacted to comment on behalf of Peithman and Sanne.