Under Sharpe, once you have reasonable suspicion that criminal activity is afoot, you can extend a stop long enough to investigate—such as by calling for and waiting on a K9—so long as you are actively and diligently pursuing that investigation. Delays caused by logistical factors (waiting for a K9, verifying information, backup response, rural location, etc.) are permissible if you’re not idly stalling. After Rodriguez v. United States, 575 U.S. 348 (2015), once the “mission” of the traffic sto