There are lots of places to learn, for example, shooting skills or DT skills. But if the instructor of them doesn't do all of the above, they are just a skills instructor. No more, no less. They are not professional law enforcement instructors, and the onus will then be on you to carefully dissect the skills you've learned from them and make sure that you throw out the stuff that's inappropriate for the job. That can be hard, because you don't know what you don't know. Don't get me wrong - outside instructors are great, and instructors from outside LE have contributed a huge amount to the skill set of the profession. But you can't just adopt wholesale what you are exposed to, no matter how much you've paid for a course, nor how impressive the credentials of the instructor are. We just can't adopt tactics and techniques from the military or competitive shooters whole cloth. We always have to thread the skills we learn through the civilian law enforcement needle.
There! There's my rant for the day. If you agree with me, my name is Ralph Mroz. If you disagree with me, my name is Frank Borelli, and hate mail can be sent care of this website. (Frank just loves when I do that)