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The time specified in the rule for the final pretrial disclosures is relatively close to the trial date . During the extensive pretrial proceedings , four different interpretations of the critical treaty language were advanced . Prisoners also suffer from excessive idleness in the large pretrial prisons where few work or educational programs are offered , forcing some inmates to spend all but a few hours locked in their cells . Empirical studies reveal that when a trial judge intervenes personally at an early stage to assume judicial control over a case and to schedule dates for completion by the parties of the principal pretrial steps , the case is disposed of by settlement or trial more efficiently and with less cost and delay than when the parties are left to their own devices .