McCoy recommends the following next steps:
These specialties, along with several more, are needed at all levels - local, state, and federal. But, whatever level or specialty you chose, be the investigator that cares, has an appreciation for the impact the crime had on the victim, and is always working to build competence in your field.
Be the voice for the voiceless.
So my long winded answer boiled down ------ No - Not too many people doing criminal investigations but that doesn't mean you will easily get a job if the budget doesn't allow for it but focus on you and your goals as you look into any career and how that career will help you attain your top 3 priorities.
Brett recommends the following next steps: