I was married to a police officer and I totally understand what you are going through. What your husband is doing is trying to intimidate you. First and foremost, consult with a lawyer before you do anything else. Police officers are trained to use intimidation on the job and very often they bring that same mentality home. Also keep in mind that just because your husband is paid to enforce the law does not mean that he knows everything about the law. The only people who can really interpret the law would be a lawyer or a judge. If you ever have a question about any law, always consult with an attorney. Your husband will continue to use threats to keep you in line.
There is a web site that deals with these very issues. It is called abuseofpower.info Check out this website, as it gives a lot of good information on how to protect yourself and how to cope. Diane Wetendorf, who is very well versed in this issue, is a wonderful resource.
In regard to his being able to kick you out of the house, speak with a lawyer and find out the best ways to protect yourself. Because your husband is a police officer, he can try and provoke you into doing something stupid and then can have you arrested for assaulting a police officer, even if you push him away from you in self defense. Police officers all know how to word a report in order for the charge to stick. Don't let this happen. If you feel that he is trying to get you involved in an argument, walk away. Walk to a neighbors house. Always try and have someone present or within ear shot so that they can verify your side of the story.
As far as getting half of everything, I believe that you would have to be married for 10 years before you would be guaranteed to get half of his pension. In regard to the house, consult with a lawyer. If the house was purchased during the marriage, it should be viewed as a marrital asset and you would be entitled to a share of it, irregardless of whether or not your name is on it. Again, this is my interpretation and only a lawyer would be able to accurately advise you.
Be strong, because you will need it. Start to document everything. Keep a diary and make an entry every single day. Indicate everything that you do with your child/children. Did you take them to school? Did you take them to the doctor? Did your husband come home late? Did he come home intoxicated? Whatever you do, do not start doing things that he could use against you. A lot of your friends may advise you that you need to start going out and "getting on with your life". However, do not start changing your behavior now. An acquaintance of mine lost custody of her children because of this. She was the primary caretaker of the children during the day and then when her husband came home, she would physically leave the house to go out with friends because she found it very difficult to stay in the house with her soon to be ex. Well, her husband kept a calendar and wrote down every time that she went out and used this against her. The judge took this into consideration and granted custody to the husband because he felt that the mother was choosing to go out versus staying home with the children at night. My lawyer always advised me to never go to bars, even if you only drink soft drinks. You never know if your husband will have you followed, as he is the police chief and he can have one of his friends or someone who works for him follow you and then say that you were drunk and beligerent, etc. Don't put yourself in that position.
I hope that this helps. Good luck to you. Don't live in fear, but make sure that you don't put yourself in any kind of position that could be taken out of context and then be used against you.