Depending on the level of position requires different levels of education, and training.
It is common today to see the job position require a associates degree, and any level above basis investigator requires more education and longer training.
Post-graduate work and master’s programs are also often pursued by crime scene investigators as to achieve CSI jobs that require specialized knowledge, such as DNA, latent print, and firearms, for example.
Within larger cities, f crime scene investigators may be hired to perform specific duties, such as DNA or fingerprint collection, while smaller locations may require crime scene investigators to tackle any number of tasks at a crime scene.
Investigators have to be patient not everything happens in an hour like on TV. It takes time to get the DNA and all tests back to the lab.
South Carolina areas need there investigators and photographers to go through the academy, but many states do not require police academy on the other hand want their investigators and photographers to a photo training.