A warrant is debt is a claim for a specific sum of money while a warrant in detinue is a claim for specific property. If your claim is simply for the return of an item such as a check and not for money, then a warrant in detinue is to be filed. If money and property are both owed, then you must file a warrant in debt and a warrant in detinue (two separate filings) against the person who you have a dispute with.