>> i kind of knew at that point that it was on, so to speak. >> deputy griffin calls for backup and follows the suspect. >> i was attempting to maintain an appropriate safe distance. his speeds would increase and decrease. luckily there was very little traffic. >> but as the taurus speeds down the highway there's a truck ahead. >> a tanker truck. it was in the right-hand lane. and he was in the middle lane, he very quickly sped up, and then cut in front of that tanker truck to take an off-ramp. >> the chase heads off the highway and a second squad car joins in. and then a third, driven by deputy began done rios, who captures the pursuit on his dash cam. >> when they passed me when i was on the on-ramp, they were driving at a high rate of speed. the suspect car was kind of weaving between a couple different lanes. >> with speeds approaching 110 miles an hour, the officers continue the pursuit. the suspect is having trouble maintaining his lane. the deputy thinks he may be dealing with an impaired driver.