California law enforcement agencies have significantly expanded their use of undercover jailhouse operations to gather evidence and secure confessions from inmates. These controversial tactics, often referred to as psychological warfare by critics, involve placing undercover officers or informants in cells with suspects to elicit incriminating statements. While authorities argue these stings are effective investigative tools, civil rights advocates raise serious concerns about entrapment, reliability of evidence obtained through coercion, and the ethical implications of such deceptive practices within correctional facilities.

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