In British English, a leash is generally for a larger (possibly dangerous or aggressive) animal, with lead being more commonly used when walking a dog.
[2] Cat leashes and harnesses are also available on the market and are convenient for people who are not comfortable letting their pet free.
Leashes also provide a clear method of communication and ensure control during training of dogs.
States that do not have statewide leash laws are Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Minnesota, Mississippi, Montana, Nevada, New Jersey, New Mexico, North Dakota, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Texas, Utah, Vermont, Virginia, Washington, and Wyoming.
In Delaware, dogs are not allowed to run at large unless in situations when the owner is present and has control over the pet.
Also, during the night dogs must be kept in an enclosure from which they cannot escape, firmly secured with a collar or chain or other device, so they cannot stray from the premises, or are under the reasonable control of the owner or custodian.
Otherwise, if the dog bites a person when not restrained the owner is subject to civil liability and criminal penalties.
Missouri legislation requires that dogs are kept in leashes that are no longer than 10 feet when they are in state parks or on historic sites.
[4] Some Oregon counties and cities have leash ordinances that can be used to hold dog owners responsible for injuries resulting from their animal attacking or biting a person while running at large.
[6] Pennsylvania legislation states that dogs must be confined or firmly secured or reasonably controlled by a person, within the property of the owner.
Nylon leashes are recommended; this material provides a bit of elasticity which is meant to result in more comfort for the dog.
Leather leashes are often preferred over the nylon ones because of the resistance of the material and because it becomes more flexible with age and it is softer.
Aggressive dogs should not be walked with such a leash, and puppies should be kept closely to ensure their protection from various dangers such as cars.
Whereas the leather leash is one of the best qualities because of the characteristics of the material, it is also one of the most expensive and not very comfortable for the cat at the same time.
Leashes are used on large animals—such as bovids, camelids, and equids—to lead them so that they will be forced to follow and come to a desired area—as well as to tether them to a specific area, such as to a fencepost or tree trunk, so that they will remain stationary and not run away.
Oftentimes, leashes are used to tether such animals when they require separation, examination, or work to be done to them, such as grooming and tacking up.