Bad-jacketing

Against the Panthers, the bureau used eavesdropping, harassment, the dissemination of misinformation, infiltration, "bad-jacketing," and, in a worst-case scenario, outright murder. [...] Given the black protest movement's propensity to essentialize Black Power and Black Power proponents into rigid racial, ideological, and increasingly gendered constructs, the FBI's practice of bad-jacketing was particularly effective

Source: wiktionary

[...] this approach can also go horrifyingly wrong very quickly, especially if COINTELPRO agents use bad-jacketing to turn activists against each other. The murder of Anna Mae Aquash is a heartbreaking example. [...] Aquash worked with the American Indian Movement for years. Probably because she was so effective, she was targeted for bad-jacketing by infiltrators in AIM.

Source: wiktionary