The following excerpt is from United States v. Upshaw, 1:14-cr-00256-LJO-SKO (E.D. Cal. 2019):
The right to collaterally attack one's conviction and sentence is granted by statute. A knowing and voluntary waiver of such statutory right is enforceable. United States v. Abarca, 985 F.2d 1012, 1014 (9th Cir. 1993). "A defendant's waiver of his appellate rights is enforceable
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