A police rumor had it that street gangs were going to shoot cops at night by aiming at the Triangle Of Death, the bright white patch of t-shirt above the bulletproof vest:
On the indoor range of his department, Mundelein (IL) PD, an agency of 50 sworn in a suburb northwest of Chicago, [Cmdr. Michael Richards] positioned a 6 ft.-tall mannequin target, buttoned a blue uniform shirt on it, and slipped a sheet of white, legal-sized paper behind the shirt so that just enough was exposed at the top to simulate a bit of T-shirt.
He then dimmed the lighting to resemble “what you’d find in an older residential neighborhood, with some streetlamps and a lot of heavy trees,” he told Force Science News. “You could make out the target, but you had to strain to really see what was going on.” In other words, a lot like normal nighttime patrol conditions in many areas. From the control booth, Richards says, “the contrast between the patch of white paper and the dark shirt was really obvious.”
One at a time, he brought in a series of randomly selected officers he knew, as the department’s rangemaster, to be “average” shooters. “They typically qualify with low numbers, don’t necessarily like to shoot and go to the range only because they have to,” he explained. “I figured they’d be like the typical suspect who gets into a shooting with an officer — not overly proficient with a handgun. I didn’t want any of the top shooters involved.”
Explaining only that this was a “quick course in low-light shooting” so as not to tip off the true point of the test, Richards led each officer to a spot about 10 feet in front of the target. He told each to draw at the sound of a timer buzzer, step to the left or to the right, come up on target, fire 3 rounds as fast as possible, then scan the area. By incorporating movement, scanning and time pressure, “I wanted to distract them from thinking too much about the target.”
Each officer fired a total of 18 rounds (6 sets of 3 shots apiece), using his duty pistol (either a .40-cal. Glock or a Sig). After an officer finished, the “T-shirt” was changed before the next test subject was brought in.
“The shot placement was shocking” when he analyzed the results, Richards says. “On our department we train to shoot center mass, usually using flat, 2-dimensional targets on a fully lit range. In training, our shots consistently tend to go to the center. If officers are shooting at high speed, their rounds may drop down toward the stomach, but they don’t often go higher.”
In his low-light experiment, by contrast, more than 80% of the shots across all the officers and all sets of fire hit in or immediately around the Triangle of Death simulated by the peek of white paper. In other words, Richards concluded, in low light they overrode their training and focused their shots on what was most vividly visible. All the officers confirmed in a post-shooting debrief that the patch of white had drawn their aim.
They switched to dark t-shirts. (The other option would be to put a brightly colored symbol over their armor.)