reporter carlos granda from our sister station in los angeles looks into the decision-making during this police pursuit. >> the rv smashed into at least six cars during the chase shredding the side of the passenger side open. at times, the rv almost lost ntl. h by tchle imas o boxy, not as maneuverable as a vehicle. it's unpredictable. your normal policy, agencies have the -- that's probably not one to try to do something like that. you don't know what the outcome is going to be. >> there's been a string of dangerous chases. police say a man was running from officers in a stolen car, went through a stop sign and hit another car. the woman inside that vehicle was killed along with four dogs. back in april, a pickup truck plowed through this intersection, striking five other vehicles. a closer look those parts of those cars and trucks flying into the air. the pick yun truck flipped on to its side. officials say there's a lot going on behind the scenes during the pursuits. trained experts are watching and evaluating risks. >> we want to minimize thesssib. it's aho delicate balancing add bet