Hartman v. Moore, 547 U.S. 250 (2006)
Hartman v. Moore is a landmark case with crucial implications for claims of retaliatory prosecution under the First Amendment.
Whether a plaintiff alleging retaliatory prosecution under the First Amendment must show the absence of probable cause as part of their case.
To succeed in a claim of retaliatory prosecution, a plaintiff must demonstrate the absence of probable cause for the underlying criminal charge, because this demonstrates that retaliation was the but-for cause of the prosecution.
The Supreme Court held that a plaintiff in a retaliatory prosecution claim must show the absence of probable cause, as it constitutes an essential element of the claim.
The significance of Hartman v. Moore lies in its clarification of the burdens placed on plaintiffs alleging retaliatory prosecution. By requiring plaintiffs to disprove the existence of probable cause, the Court ensures that only credible claims proceed, protecting officials from undue litigation. This case thus matters for law students as it impacts how retaliatory intent is proved in similar First Amendment contexts. It asserts the necessary prerequisites for a retaliation claim and ensures that prosecutorial decisions grounded in probable cause stand robust against challenges predicated solely on accusations of retaliatory intent.