Pen. Code, § 243.9

(a) Every person confined in any local detention facility who commits a battery by gassing upon the person of any peace officer, as defined in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2, or employee of the local detention facility is guilty of aggravated battery and shall be punished by imprisonment in a county jail or by imprisonment in the state prison for two, three, or four years.

(b) For purposes of this section, “gassing” means intentionally placing or throwing, or causing to be placed or thrown, upon the person of another, any human excrement or other bodily fluids or bodily substances or any mixture containing human excrement or other bodily fluids or bodily substances that results in actual contact with the person’s skin or membranes.

(c) The person in charge of the local detention facility shall use every available means to immediately investigate all reported or suspected violations of subdivision (a), including, but not limited to, the use of forensically acceptable means of preserving and testing the suspected gassing substance to confirm the presence of human excrement or other bodily fluids or bodily substances. If there is probable cause to believe that the inmate has violated subdivision (a), the chief medical officer of the local detention facility, or his or her designee, may, when he or she deems it medically necessary to protect the health of an officer or employee who may have been subject to a violation of this section, order the inmate to receive an examination or test for hepatitis or tuberculosis or both hepatitis and tuberculosis on either a voluntary or involuntary basis immediately after the event, and periodically thereafter as determined to be necessary by the medical officer in order to ensure that further hepatitis or tuberculosis transmission does not occur. These decisions shall be consistent with an occupational exposure as defined by the Center for Disease Control and Prevention. The results of any examination or test shall be provided to the officer or employee who has been subject to a reported or suspected violation of this section. Nothing in this subdivision shall be construed to otherwise supersede the operation of Title 8 (commencing with Section 7500). Any person performing tests, transmitting test results, or disclosing information pursuant to this section shall be immune from civil liability for any action taken in accordance with this section.

(d) The person in charge of the local detention facility shall refer all reports for which there is probable cause to believe that the inmate has violated subdivision (a) to the local district attorney for prosecution.

(e) Nothing in this section shall preclude prosecution under both this section and any other provision of law.