The first has been to increase the number of rules and to enforce them more strictly.

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When federal and state judges are willing to strictly enforce the rules, abuse of the discovery process can lead to punishing consequences.

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The cushion could be plumper still in some places: Europe is split over how strictly to enforce these rules, and whether to allow countries such as Britain and Sweden to add yet another wedge of equity on top.

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And beginning this year, the ATP decided to more strictly enforce the 25-second rule between points in an effort to speed up play.

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