While I have not recruited specifically for homicide detectives, I have found that the best way to find out about any career is to go online and ask. There is information out there that will tell you what people do in certain careers, other sites that might describe a typical day in the role, jobsites with openings and job descriptions as well as salary ranges for the positions, etc. YouTube may have videos explaining the same. If you look at multiple sites, look for consistencies in what they say. This should help you feel more comfortable that the information you are reading is accurate.
I used Google and typed in your question. Here is what I found so far to get you started.
Hope this helps. Feel free to reach back out.
Become a Homicide Detective: Step-by-Step Career Guide - Study.com
There are five general steps to follow to become a homicide detective:
Step 1: Meet Department Standards. ...
Step 2: Become a Police Officer. ...
Step 3: Get Promoted to Detective. ...
Step 4: Continue Education. ...
Step 5: Gain Experience for Career Advancement.
Carol recommends the following next steps:
- see above