. >> for investigator john ridgeio, it's his fifth time assisting counterparts. >> we know how they work and they know how we work. we can have surveillance and under covers that they haven't seen before. that's why we are successful. >> he often goes under cover, playing a role to build trust with a variety of unsavory characters. >> what up, girl? it's junior. are you going to be around today? >> one of the newest targets is an ecstasy dealer who sells bills named after candy. >> i'm looking at the skittles. let me know what the paper on that is too. cool. >> she asked me if i wanted a jar which is $100. i said a half jar. if the police buy 15 pills, wey will buy a half jar and get a search warrant. >> i was going to be up in the area and i wanted to see if i can roll through. i wanted to talk like they do. when we debrief people that we arrest, talking to them, you will know the terminology that they like to use. call me back. >> you probably count how many steps he does. he is on the 500th step. >> he paces. he will wear out a piece of the grass up there. >> each time that he and his