Colorado

Summary: In 2004, the Colorado General Assembly passed changes to the state's dangerous dog laws; part of the law prohibited municipalities from adopting any breed-specific dog laws. Denver previously enacted an ordinance that regulated dogs by breed (Section 8-55). In this current action, the City instituted an action seeking declaratory judgment that Section 8-55 preempts the state law under the Home Rule Amendment. The court found that the regulation of dogs by breed on an intra-city basis was purely a matter of local concern, and thus fell under Home Rule authority. The state was permanently enjoined from taking any action against Denver based on the language of the amended state law. The state then filed a notice of appeal, but subsequently withdrew it.

Summary:

It is unlawful to own, keep, possess, maintain, harbor or transport any pit bull in or through Fort Lupton, Colorado, with certain exceptions for licensed vets and animal shelters. Dogs that have already been licensed may remain, as long as the owner is 21 years of age, shows proof of rabies vaccination and liability insurance of $100,000, keeps the dog properly confined, and posts “PIT BULL DOG" signs. Failure to comply with all of the terms shall subject the pit bull to immediate impoundment and disposal.

Summary:

This Denver, Colorado ordinance provides that it is unlawful for any person to own, possess, keep, exercise control over, maintain, harbor, transport, or sell within the city any pit bull. A pit bull is defined broadly as "any dog that is an American Pit Bull Terrier, American Staffordshire Terrier, Staffordshire Bull Terrier, or any dog displaying the majority of physical traits of any one (1) or more of the above breeds, or any dog exhibiting those distinguishing characteristics which substantially conform to the standards established by the American Kennel Club or United Kennel Club for any of the above breeds." [emphasis added] A person who applied for and received a special pit bull license before August 7, 1989 (date of the publication of the ordinance) and who maintains the pit bull in compliance with the requirements of the ordinance may keep a pit bull.

Summary:

Commerce City defines a pit bull or pit bull terrier as any dog that is an American pit bull terrier, American Staffordshire terrier, Staffordshire bull terrier, any dog displaying the majority of physical traits of any one (1) or more of the above breeds or any dog exhibiting those distinguishing characteristics that substantially conform to the standards established by the American Kennel Club (A.K.C.) or United Kennel Club (U.K.C.) for any of the above breeds. Commerce City has banned pit bulls with the exception of pit bulls who were in the city prior to November 2005.

Summary: The following comprises Aurora, Colorado's animal-related ordinances. In addition to the standard ordinances dealing with number restrictions, at-large animals, barking dogs, and licensing, the city has two important provisions. First, the city makes it unlawful to own, possess or keep any dog, rabbit, or cat over the age of 6 months that has not been spayed or neutered (subject to some exceptions). Second, it is unlawful for any person to have, own, possess, keep, exercise control over, maintain, harbor, transport, or sell within the city any pit bull or restricted breed of dog. "Restricted breeds" include any American Bulldog (Old Country Bulldog), Dogo Argentino, Canary Dog (Canary Island Dog, Presa Canario, Perro De Presa Canario), Presa Mallorquin (Pero De Presa Mallorquin, Ca De Bou), Tosa Inu (Tosa Fighting Dog, Japanese Fighting Dog, Japanese Mastiff), Cane Corso (Cane Di Macellaio, Sicilian Branchiero), Fila Brasileiro or any dog displaying the majority of physical traits of any one or more of the above breeds.

Summary: The plaintiffs, dog owners and related canine and humane associations (dog owners), filed a complaint in the Denver District Court against the defendant, City and County of Denver (city), seeking both a declaratory judgment on the constitutionality of the "Pit Bulls Prohibited" ordinance, Denver, Colo., Rev.Mun.Code § 8-55 (1989), and injunctive relief to prevent enforcement.  The dog owners in this case claim the ordinance is unconstitutional, violating their rights to procedural and substantive due process and equal protection, is unconstitutionally vague, and constitutes a taking of private property.

Summary:

In Burlington & M.R.R.R. in Nebraska v. Cambell , 14 Colo. App. 141 (Colo. Ct. App. 1899), plaintiff’s horse was killed by a train. Although the court reversed the verdict for the plaintiff for failure to prove defendant’s negligence, the court allowed witness testimony on the market value of the mare.

Summary: Action by the People of the State of Colorado against William J. McCausland.  From a judgement overruling defendant's motion to dismiss and finding him guilty of cruelty to animals, he brings error.  Affirmed.

Summary:

Defendant, a journalist, attempted to film a dogfight for an investigative story on dogfighting following the passage of a Denver ordinance forbidding the ownership of bull terriers (pitbulls).    Defendant videotaped two separate fights and dogs "training" by running on treadmills.  After the story aired, public outcry lead to a police investigation as to the source of the dogfighting footage, which lead to the arrest of the defendant and her cameramen for dogfighting and perjury.

Summary:

In 1974, the Colorado Department of Health adopted certain regulations, the conceded effect of which is to prohibit importation of pets for resale from states whose licensing laws and regulations for commercial pet dealers are not as stringent as those of Colorado. The regulations exempt from this prohibition persons who import pets not for resale and exclusively for breeding purposes or for personal use. After the regulations were upheld by the Denver district court, the plaintiffs, who are commercial pet importers, brought this appeal. The court found these arguments to be unpersuasive and, accordingly, affirmed the judgment of the trial court.