The Halligan tool is one of the most versatile and well-known forcible entry tools used by firefighters. The Halligan is unique because, unlike many other tools in the fire service, it was designed specifically for firefighting and made by a firefighter, Chief Hugh Halligan. The forcible entry tools displayed in this case show the development of the Halligan tool. The Halligan’s predecessors, the Claw and Kelly tools, each had functions necessary for forcible entry, which Chief Halligan combined to make his tool. Two others, the Ziamatic and Pro-Bar tools, are versions of the Halligan used in the fire service today. The original Halligan is no longer produced, but these tools use the original design, with a few modifications.