(Pawtucket, RI) -- Rhode Island law enforcement agencies are hoping for an ace in the hole to help with unsolved murder and missing persons cases. The Pawtucket Police Department announced on Tuesday that "cold case playing cards" will be made available to inmates at the Adult Correctional Institution through a partnership with the Rhode Island Department of Corrections. Five-thousand decks have been ordered with federal funding obtained through FBI assistance. A tip line for cold case info has been set up at 877-RI-SOLVE, as well as a website, ColdCaseRI.com.