Every person confined in a state prison of this state who commits a battery upon the person of any individual who is not himself a person confined therein shall be guilty of a felony and shall be imprisoned in the state prison for two, three, or four years, to be served consecutively.
Cal. Penal Code § 4501.5
Offenses by Prisoners
Applied in 15 court decisions — leading case 29 Cal. 4th 1210 - People v. Barnum (2003)
Most recently applied in People v. Robinson (September 2011)
Amended by Stats. 1978, Ch. 579.
How often courts cite this section
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.