What branch of military should i join to become a criminal investigator?

i need the military for college, hand to hand and weapons training, and when hiring criminal investigators military experience looks good. i hear the military is a good route to go for any kind of law enforcement. and i am aware you have to be a cop for a certain amount of time to get to criminal investigator, i want to use the military to get there i little quicker. does active duty help or hurt becoming a cop then criminal investigator? also what are psychology classes like in the military, are they different? i dont know why they would be but i heard from a few people that they were. please and thank you|||The info you have heard is correct. You will not just become a criminal investigator in the military. Just like the civilian world, you have to work your way up. I have worked with many NCIS, CID, and other agents. It is a good field if that is your interest. The navy/marines have NCIS and the Army has CID. My advice is to join the Military Police branch. That way you get the feel of both police and investigating. You could always look into Intelligence field too. The military police handle things just a little different than the civilian but they are very much alike.|||Joining the military and getting a college degree are two of the best things that you can do if you want to become a law enforcement officer. There are criminal investigator positions within the federal government that you can get without any law enforcement experience. You can qualify with a college degree with a high grade point average in some cases. If you want to become a police detective, you would have to start as a patrol officer, and probably work for a number of years before becoming a detective. What branch of the military you join won't matter much. That is more of a personal decision. I would consider trying to join the Coast Guard. Best of luck!