This invention provides an improved leash for dogs with locking capabilities to prevent unauthorized removal of dog therefore reducing pet theft. The leash comprises of a handle portion to be held by the user and collar portion to be worn by the dog. A fixed object is required in order for said leash to be effective such as a tree or post. A desired fit is established by means of several sizing holes along the collar portion that will close the perimeter around the dogs' neck. The collar portion is secured to the dog and handle portion looped around fixed object. A built-in locking cylinder for key insertion is housed directly on the collar which allows for it to be locked or unlocked into position. The collar and leash is one complete unit and made from cut-proof material that is flexible yet resilient to withstand tension.