IRAC -- an acronym for  Issue ,  Rule ,  Application ,  Conclusion  -- is a simple organizational model for legal writing. It is particularly useful for organizing the small-scale analysis of an individual issue. A very basic analysis based upon the IRAC model might look something like this:

    Force is the final element of the offense.  The defendant must have used force or the threat of force in order to be convicted of robbery.  [Citation.]  Smith's statement that Jones would regret it if he denied Smith's demand for the money was an implicit threat of force.  Smith's actions therefore meet the force requirement.