The following excerpt is from Vera v. Gipson, Case No. 1:13-cv-00814-AWI-SKO-HC (E.D. Cal. 2014):
Challenges to prison disciplinary adjudications that have resulted in a loss of time credits must be raised in a federal habeas corpus action and not in a 1983 action because such a challenge is to the very fact or duration of physical imprisonment, and the relief sought is a determination of entitlement of immediate or speedier release. Preiser v. Rodriguez, 411 U.S. 475, 500. Thus, such claims are within the core of habeas corpus jurisdiction.
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