Collateral challenge or attack

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Full Text of the Document

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....to undermine a judgment through a judicial proceeding in which the ground of the proceeding (or a defense in the proceeding) is that the judgment is ineffective. Typically a collateral attack is made against a point of procedure or another matter not necessarily apparent in the record, as opposed to a direct attack on the merits exclusively. A petition for a writ of habeas corpus is one type of co....