Get on a first name basis with the detective. If there isn't one assigned call them several times a day until they get the message that they are going to have no peace of mind until they take care of this. There is a story on the Bible about an unjust judge that someone bothered every day for justice and she GOT justice because the judge wanted her to leave him alone. Be the squeaky wheel, squeak loud, squeak all the time. Make them want you to go away and they will take care of it. Maybe you can borrow a high end trail camera from someone, one that takes pictures at night and sends them to your phone in real time. Put it somewhere that covers their house so that if they start loading anything up you can call the police. I wonder if someone who is not you could put a GPS tracker under their bumper. Someone young who can run fast if need be.
Don't get in trouble. Some of these ideas probably aren't really good in this day and age and come with some risk, especially since you are dealing with known criminals. Criminals, obviously, don't care about the rules, you do. It is easy for me to talk.
We are all angry with you. Don't get yourself in trouble. Do call the detective every day, heck.. twice a day morning and afternoon. Ask for a home number. Bug them.
It must be really hard knowing your stuff is right there and you cannot go get it. I hope Spacey is right and the police are working on it but dang..
I have a feeling this is going to work out for you but hanging there in limbo must be really hard. You are in my thoughts and prayers, angry as I am about this.
Julien