Investigations of Neglect & Mistreatment

In Investigations, our compassionate animal welfare agents protect vulnerable animals from neglect and mistreatment, and educate owners on proper and humane care for their animals.

The Dumb Friends League and Colorado Humane Society, which is a program of the League, provide animal neglect and mistreatment investigations in 45 counties throughout Colorado. Protecting companion animals and horses is an integral part of our mission. As state-commissioned peace officers under C.R.S. 35-42-107, our investigators are professionals dedicated to carrying out the provisions of the Animal Protection Act.

How to report animal abuse

  • Crime Stoppers (throughout Colorado) – To report animal abuse or neglect throughout the state of Colorado, submit an anonymous tip through the Crime Stoppers website, call the Anonymous Tip Line at 720.913.7867 (STOP) or text to 274637 (CRIMES).
  • Dumb Friends League (metro Denver area) – You may also contact the Dumb Friends League directly by filing an online report.
  • Colorado Humane Society – To report animal abuse or neglect outside of the metro Denver area visit

For concerns regarding barking, licensing, spay/neuter requirements, running at large and vaccinations, please contact your local animal control agency.

What to report

Typical offenses include pets or horses left outside without adequate shelter, food or water, but other problems also need our attention. Situations where an animal appears ill or injured, has a badly matted coat or has been intentionally harmed warrant a closer look by our animal protection investigators.

Why report animal abuse?

Studies show that people who intentionally harm animals may be more likely to commit violent crimes towards people. By taking the time to report what you observe, you’ll not only be helping the animal involved, you’ll be helping prevent future crimes and promoting respect for all life. Most reports are resolved through education, assistance and enforcement.