So im looking at this one of 3 senarios in order of least to most likely:
1: cops watching a dealer follow nick back home / dealer gets caught, spilling beans, they get picked up at home.
2: neighbours hear a domestic, call cops, cops enter the home find the drugs easily and guns not stored properly, jail.
3: Aaron after being felted harder than a pool table factory on double felt tuesday after the desk blowie, called the cops, reporting the drugs and guns being unsafe and locations where they were stored (only someone who was in the house would know that for 100%, so not a farmer Aaron), cops go in find drugs and guns where mentioned, jail.