A belt having first and second ends is adapted to encircle the waist of a user. A quick-release fastener is provided between the two ends and is releasable by pulling outwardly on a protruding hand loop at one free end of the belt. A leash can be secured to the belt at a location between its two ends. The belt provides normal control to a leashed animal or child, allowing the user's arms to swing freely while walking or running. Continuous control of an animal or child during and after release of the belt is provided by grasping the hand loop and pulling outwardly, thereby causing a portion of the belt to act as a hand-held leash extension.