Wikipedia
CRuPAC
CRuPAC (pronounced CROO-pack) is an acronym that generally stands for: Conclusion, Rule, Proof, Application and Conclusion. It functions as a system for organizing a closed legal brief. The CRuPAC format is a "closed" format that is frequently used in responsive legal pleadings, where the issue has already been properly framed and identified by the movant (often through use of the related IRAC methodology). Some authors have suggested dropping the "P" section of CRuPAC, which results in only four sections: Conclusion, Rule, Application and Conclusion