They did what they call a knock and talk. Trying to get you to admit the crime and or to look, or better yet, smell out "probable cause"to call a Judge and get a warrent.. What you signed I would bet is a waiver and permisson from you and allow them to search They didnt have probable cause with just your ex telling some detective, they hear so much crap from mad exs it is crazy everything from accusing them to being child molesters to drug trafficers I know a police officer can be intimidating and knowing your doing something that is illegal it is easy to say ok I give up, so to speak. lol but. Never let a police officer in your home unless hes got a warrent. If you ever get read the mirranda rights always keep your mouth shut and if I said anything it would have been that the MJ I was growing was for me and medical use.I am sure if you didnt let them in the would have got a warrent but that might have given you time to start chopping and flushing.