Penal Code PC § 642

Every person who wilfully and maliciously removes and keeps possession of and appropriates for his own use articles of value from a dead human body, the theft of which articles would be petty theft is guilty of a misdemeanor, or if the theft of the articles would be grand theft, a felony.  This section shall not apply to articles removed at the request or direction of one of the persons enumerated in section 7111 of the Health and Safety Code .