Notwithstanding Section 190.4 or any other provision of law, the corpus delicti of a felony-based special circumstance enumerated in paragraph (17) of subdivision (a) of Section 190.2 need not be proved independently of a defendant’s extrajudicial statement.
Source:
Section 190.41, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PEN§ionNum=190.41..