Under the new regulations, civilian lawyers are required to sign an agreement to abide by the new tribunal rules.

NPR: Plea Agreement Gives Detainee Seven Years

Under tribunal rules, the defense team should get advance access to prosecution witness testimony so it can prepare its arguments.

CNN: STORY HIGHLIGHTS

If the tribunal rules in favor of El Salvador, activists are hopeful it would address some of the concerns over the use of investor-state arbitration in general.

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