Section 597u - Unlawful methods of killing animal(a) A person, peace officer, officer of a humane society, or officer of an animal shelter or animal regulation department of a public agency shall not kill an animal by using either of the following methods: (2) Intracardiac injection of a euthanasia agent on a conscious animal, unless the animal is heavily sedated or anesthetized in a humane manner, or comatose, or unless, in light of all the relevant circumstances, the procedure is justifiable.(b) With respect to the killing of a dog or cat, a person, peace officer, officer of a humane society, or officer of an animal shelter or animal regulation department of a public agency shall not use any of the methods specified in subdivision (a) or any of the following methods: (1) High-altitude decompression chamber.Amended by Stats 2019 ch 7 (AB 1553),s 23, eff. 1/1/2020.Amended by Stats 2016 ch 105 (AB 2505),s 1, eff. 1/1/2017.Amended by Stats 2005 ch 652 (AB 1426),s 1, eff. 1/1/2006