Some folding knives are designed with emergency rescue tools incorporated into the handle. These tools can include features like seatbelt cutters, glass breakers, or even additional tools like screwdrivers or wrenches. These types of folding knives are commonly known as "rescue knives" or "tactical rescue knives." They are specifically designed to assist in emergency situations, such as freeing someone trapped in a vehicle or breaking glass in case of an accident. However, not all folding knives have these features, so it is important to check the specifications and features of a particular knife before purchasing to ensure it meets your specific needs.