lieutenant bobby duvall who runs the unit has a warning for car thieves. >> las vegas is not the place to come and steal cars. it really isn't. >> his detectives use bait cars that are strategically placed to present an opportunity for potential thieves. all rigged with hidden cameras. >> we've got state-of-the-art bait car program. we have one of the largest fleets in the united states. and we have guys that know how to work them. >> tonight the bait car is a 2006 escalade. the cops fake a fight between a man and a woman. where did they get the idea? >> it is based on actual cases where people have had their cars stolen. >> in the commotion, they pretend to abandon the bait car still running. this man spots the car, gets in and looks around. but he doesn't take the bait. and leaves. moments later, this suv pulls up across the street. this man gets in and begins to drive away. and within minutes, he pulls over. that's when police move in. >> hands up, hands up! >> they arrest two men, the driver and his accomplice, a man named frankie, who i get a chance to talk to. >> chris hansen wit

. >> as you may remember from our last report, we're once again riding along with lieutenant bobby duvall who runs the viper squad a specialized unit formed to combat auto theft. hundreds of cars are stolen even month in las vegas, costing victims millions of dollars. just three years ago, vegas led the country in auto theft. with aggressive policing, numbers have been dropping. his team uses specially designs bait cars rigged with hidden cameras. they leave the vehicles in high-crime areas and wait for them to be stolen. watch how it works. >> hey, you're following me! >> it begins with undercover cops faking a fight. >> not taking care of business. what about our kids? they appear to abandon the car in chaos. >> people have fights on the streets and cars get left behind. >> within minutes the bait car is stolen. the vehicle is controlled remotely from a laptop. >> arm it, disarm it, honk the horn. you can kill the ignition. >> the suspect is 27-year-old marco florez. look how he's covered his hands, presumably to avoid leaving fingerprints. but he need not have bothered. >> put your han

lieutenant bobby duval handles the arrest. >> the operation tonight is to safely take him into custodyget him in jail. >> they're not going to tell kyle he was caught in a sting. they come up with another excuse. they pull him over and tell him his victim picked him out of a photo lineup. so he still has no idea how he was really caught. >> can i ask what's going on? >> kyle who is serving a prison term on other charges pleaded guilty and was sentenced to one to four years in prison for his store front crimes. police ultimately caught this guy. >> yes. >> how did that feel? >> it was incredible. before this i thought that cops they don't really do anything. they just drive around. >> turns out in vegas police do a lot. >> it's just all about negotiation. >> undercover detectives are everywhere. and it isn't only car thieves they're after. >> her target audience is going to be a pimp. >> a pimp. >> hi, honey. do you know the secret to a happy home in these modern times? it's a housewife who's in control of the finances. actually, any wife, husband, or human person can use progressive's