With this as a starting point, the key objectives in any police procedural, once you have found you evidence and spoken to you witnesses, is the interrogation of your key suspects.

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Its first stop would be the Justice Committee, where it could get mired in all sorts of procedural issues, including the admissibility of the main evidence against Mrs Arroyo: purported recordings of her telephone conversations, made without her knowledge or consent.

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In seeking to balance the supposed necessity of finality against the obvious need to protect the innocent from all-too-frequent errors, the case probes the viability and scope of the constitutionally-protected writ of habeas corpus, the procedural device for reviewing otherwise final judgments based on newly-discovered evidence.

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The four-day hearing was concerned with procedural matters, such as the rules for calling witnesses and handling classified evidence.

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