Unlike the spike strips used by police, which slowly deflate the punctured tires, caltrops rapidly flatten the tire, closer in effect to a blowout.
Suspect in critical condition after exchanging gunfire with Yakima police – KIRO 7 News Seattle
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Stephen Anthony Saluskin (K'u-lul-k'in), Test
Yakima police arrest domestic-violence assault suspect following standoff, Crime And Courts
Watch for Tire Flattening Spikes in the Road in West Yakima
Sheriff's detectives looking for leads on suspect in Terrace
Riverside Christian students hooked on engineering challenge, News
WA APPARATUS GETS SPIKES IN TIRES, Firefighter Close Calls
Yakima Police Are Asking For Any Info with 'Caltrop' Incidents
Ballpark figures: Yakima bet big on youth sports, and now it's paying
Russell Brand's name WIPED from PR and talent agency – but his sold-out show goes ahead, Entertainment
Wanted: Applicants for Yakima Police Department -- recruitment officer takes to the road to find candidates, Local
Yakima police doing away with chokeholds for all-but-lethal encounters, Local