North Carolina stratagem

Proper noun

 * 1)  A legal tactic in court proceedings, intended to place the opponent on to the wrong foot by unethical use of court procedures:
 * 2) * "They [judges] are awake to what is called the 'North Carolina stratagem', whereby an application is made, late on Friday with a thick pile of affidavits, to a judge unfamiliar with an area of law in the hope that the judge will grant the injunction sought out of caution".