to protect or because, in briceno's case, he is such a high-level threat that we take these precautions just to protect ourselves. >> with briceno safely restrained, deputies descend on his cell searching for contraband, like weapons or drugs. and equally as important, gang intelligence. >> sometimes they will hide kites in between the papers. if it is legal mail or legal paperwork they think we can't search it. we can search it. but we can't read it. >> does that happen a lot to you? >> what, this? >> yeah. >> yeah. >> how come? >> just procedure, their jobs, you know. >> within minutes, the deputies make a hit and discover gang-related documents. >> i'm not really at liberty to say exactly how it could help us. it's sensitive material. but it's probably going to help investigations further down the road. this was a good one. any time we get decent intelligence, it's a good search. >> while authorities still consider briceno to be a powerful gang leader, his time at orange county has been spent trying to disassociate himself from that past.