Courts have long recognized absolute immunity for testimony given in judicial proceedings, reasoning that witnesses must be able to testify freely without fear of being sued for what they say on the stand, and that the adversarial trial process — cross-examination, impeachment, perjury prosecution — is the intended check on false testimony, not civil liability.

This immunity typically covers the testimony itself but does not necessarily extend to related conduct outside of testifying, such as fabricating evidence before trial or making false statements in an investigative report used to support an arrest or prosecution — conduct that may be independently actionable even where the later trial testimony describing that same fabricated evidence is immune.

A Juricratic simulation separates the immune testimonial act from any non-immune pre-testimony conduct, such as evidence fabrication, as distinct inputs — a claim built entirely around what a witness said on the stand faces a strong immunity gate, while a claim built around fabrication that preceded the testimony does not.

Civil rights counsel structures a claim involving a lying witness around the pre-testimony conduct — fabricated reports, coerced statements — rather than the trial testimony itself, since courts routinely dismiss claims premised purely on what a witness said under oath.