You are truly not alone in feeling uncertain about your career vs education. You live in a city, where you have access to knowing about investigations, prison systems etc.
You seem to have analytical and social skills and this opens up many opportunities.
From your question, I am not clear if you are volunteering in the area you are in or in investigations. Political science, criminal Justice are areas that provide you more in depth knowledge of the system. Police investigators will need a network of support, experience and knowledge base to be effective. I would urge you to go online to Indiana Career Exploration site to do a survey. This helps understand options, careers and education questions. The site id is:
Good luck and hope this helps answer your question.