>> investigator drake carpenter and adrian sandoval are about to launch a search with officers. it's one of many tactical measures they take on a regular basis. >> it sounds like there are guys in the day room. >> to make sure that a jailhouse war never erupts. >> you want us to go in first? you guys go straight to 16? >> i'm ready. are you guys ready? >> a lot. >> you ready? let's get it. >> get on the bar, right now. get on the bar. let's go. >> you ever worked with the police before or no? get it..ou ready? >> get on the5 bars, right now let's go. >> on the bars, on the bars. >> get on these [ bleep ] bars. get off that [ bleep ] phone and the bars. >> face >> right behind you. >> this ain't no tough business. you hang up when i tell you to hang up and do what you're told. you follow orders. i'm what you're looking for. put your hands bind your back. it is what it is.tx >> carpenter and sandoval part of the criminal intelligence unit, or ciu, have participated in thousands of tier searches to date. >> give me 19. unlock 19. step out, hands on your head, m friend. step over,

recently investigators adrian sandoval and drake carpenter began hearing about a renewed battle on the streets between two long time rivals trksz lat the kings and maniac latin disciples. >> what are you? >> maniac. >> it's hot over there. what kind of case do you have? >> my backup? a couple of misdemeanors. resisting. >>>> what do they call you? >> the maniacs, they've been at war with a lot of other big gangs they've been at washing with the cobras, gangsters, the kings. one of the biggest, bloodiest wars were themselves, killing each other. >> you're recording so you can see my face. you know what i mean? shoot me. >> the maniac latin disciples, or mlds, represent the second largest latino street gang in chicago. founded in the 1960s, they got their start in humboldt park on the city's northwest side and branched out from there. they now claim up to 3,000 members who must obey strict codes of conduct. above all no, one is to cooperate with law enforcement. but sandoval and carpenter have seen gang members break that cardinal rule time and time again. they've personally recruited ma

. >> soon after investigators adrian sandoval and greg carpenter recruited niko they began building awith his intel. they've identified an alleged drug ring on chicago's northwest side with ties to the latin lover's gang. >> that's huge. >> together, with the cook county sheriff's police, they've made undercover dope buys at dealer's house. >> out of the car. >> there they go right there. >> now they've obtained a search warrant, so it's time to take the target down. >> you or eddie the last guy. >> who's the last guy. >> i'll be behind you. >> make sure everybody's got their methods. >> our primary breach door right here pap this is the known that we have. a great distance between that front gate and the house. the house is set right on the alley. >> partners now, make sure they're set. you guys good? you guys good over here? that look like a pit to me. these, i don't know. the plan is to distract these dogs to the front. what we want to do is get if that house before those dogs are able to get back. the point is to get everybody in here safely and execute the search warrant. >> whoe

. >> adrian sandoval is going to check out a tip given by an inmate. spot for a gun on chicago's south side. >> the personal that gives us information is real familiar with the scene. a lot of times active gang members conceal these loaded weapons out in the streets and they keep them in the neighborhood for security in the case of any opposition that comes into the neighborhood. they are able to run to the spot, have quick access to depend themselves. >> you have a group of kids right up here on this block. >> 10-4. >> is it safe? nothing on the bottom. >> if you look down the alley where the weapon is stashed, you have kids down here playing ball. a lot of individuals are willing to volunteer and turn in weapons as it gives them credibility. as far as where we stand, this is kind of a nice break for a lot of individuals. >> because the informant proved good on his word, the chances of striking a plea deal with the state's attorney office just improved. >> i've dealt with the state attorney's office before working this case, they are willing to give h