This case regards the use of horses as transportation and control by police. The suit was brought by the Peruvian Institute of Legal Counsel for the Environment and Biodiversity against the Ministry of the Interior to challenge a law relating to the police force and the use of horses. The Institute cites Law 30407, which prescribes the protection of animal welfare, as the horses are put in peril when used in policing matters. The court discussed matters of animal welfare, constitutionality, and several precedent cases in its opinion, including the interpretation of the word “mounted,” and held that the claim was overall null and void.