An animal control officer may be an employee of a municipality, is an employee of, or a contractor to, a municipality, is charge with the responsibility of responding to calls for service ranging from stray animals to investigations of cruelty to animals and dog fighting, and bringing them to a compound or animal shelter, where the animals are held for a certain time before being returned to their owners, put up for adoption, released back into the wild, or euthanized. Animal control departments are also responsible for investigating incidents of human contact with both wild and domestic animals, such as bites. They may work with Health Departments, police departments, sheriffs departments or parks and recreation departments.