In many jurisdictions, all forms of zoophilic acts are prohibited; others outlaw only the mistreatment of animals, without specific mention of sexual activity. In some countries, such as Denmark, bestiality is not outlawed. It is currently illegal in Canada, Netherlands, 32 U.S. states, Australia, the United Kingdom, New Zealand, Turkey and Ghana. In the UK, Section 63 of the Criminal Justice and Immigration Act 2008 (also known as the Extreme Pornography Act) outlaws images of a person performing or appearing to perform an act of intercourse or oral sex with an animal (whether dead or alive). Countries such as Belgium, Germany, and Russia are somewhere in between: they permit sexual activity with animals, but prohibit the promotion of animal-oriented pornography.

Laws on zoophilia are often triggered by specific incidents. While some laws are very specific, others employ vague terms such as "sodomy" or "bestiality," which lack legal precision and leave it unclear exactly which acts are covered. In the past, some bestiality laws may have been made in the belief that sex with an animal could result in monstrous offspring, as well as offending the community. Current anti-cruelty laws focus more specifically on animal welfare while anti-bestiality law are aimed only at offenses to community standards.



Notable legal views include Sweden, where a 2005 report by the Swedish Animal Welfare Agency for the government expressed concern over the increase in reports of horse-ripping incidents. The agency believed current animal cruelty legislation was not sufficient in protecting animals from abuse and needed updating, but concluded that on balance it was not appropriate to call for a ban. In New Zealand, the 1989 Crimes Bill considered abolishing bestiality as a criminal offense, and instead viewing it as a mental health issue, but they did not, and people can still be prosecuted for it.

Some countries once had laws against single males living with female animals, such as Alpacas. Copulating with a female alpaca is still specifically against the law in Peru.

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Until 2005, there was a farm near Enumclaw, Washington that was described as an “animal brothel”, where people paid to have sex with animals. After an incident on July 2, 2005, when a man was pronounced dead in the emergency room of the Enumclaw community hospital after his colon ruptured due to having been sodomized by a horse, the farm garnered police attention. The state legislature of the State of Washington, which had been one of the few states in the United States without a law against bestiality, within six months passed a bill making bestiality illegal.