Never let the police trick you into being a suspect. Sometimes it's just a trick. You've just stumbled into one of the biggest tricks that cops use, and it is lying to you in an interrogation room. Telling you you're not in trouble, we already know everything, just help yourself. Don't worry about this little consent to search form. It's really nothing. Just sign right here. You're in there answering questions that you shouldn't be answering. You're consenting to searches that you shouldn't consent to, and all along you think they're your friend. What, are you stupid?