Saying that the maneuver was 100 percent effective if administered correctly, police captain Matthew Carlson demonstrated the proper technique for subduing a grand jury to a group of younger officers Thursday. First and foremost, its important to get a strong, firm hold on the state-level district attorneys office before you do anything elsethat way, youre making sure you never put yourself in any direct danger, said Carlson, who explained a series of self-defense moves that would ensure grand jurors interpret the law in such a way as to give police the widest latitude in justifying the use of force, adding that performing the moves correctly would cause jurors to submit to the officers will in no time at all. When youre out there facing a prosecutors questions about whether you were acting lawfully and with discretion, you wont have time to think. And thats why its important that all of you master this technique now, because inevitably, many of you will find yourselves in a situation where youll need to call on this training. But used properly, these methods will stop any prosecution in its tracks well before theres an indictment. Carlson went on to stress that subduing a grand jury is a last-ditch option, and that officers should always try to thwart any investigation well before there are official proceedings. 