The following excerpt is from Estrada v. Biter, Case No. 1:14-cv-00679-DAD-EPG-HC (E.D. Cal. 2016):
10. When presented with a state habeas petition, a California court "must first determine whether the petition states a prima facie claim for relief . . . and also whether the stated claims are for any reason procedurally barred. To assist the court in determining the petition's sufficiency, the court may request an informal response from the petitioner's custodian or the real party in interest." People v. Romero, 8 Cal. 4th 728, 737 (1994).
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