>>Talane+(OP)
The defendants could make a reasonable case against both the officer who stole the property out of police custody
and the police department that failed to protect it. The former for theft and failure to return the property to its owner, and the latter for negligence. I believe the term is "jointly and severally liable"?
The police department has its own separate claim against the officer, of course, for the costs they have incurred (separate from the value of the stolen property, which wasn't theirs to begin with) as a result of the officer's actions.