I know Georgia has one, so does Tennessee and Oklahoma, do any other states as well (or do they all)?  Just curious.

NY does not have a separate Bureau of Investigations....New York State Police have investigators, that I believe would be equivalent to the type of agency you are referring to

North Dakota has a Bureau of Criminal Investigations. It's not a part of the Highway Patrol. They run the State Crime Lab, do investigative work and oversee the Narcotics Task Force.

Ohio has the Bureau of Criminal Investigation and Identification.
Kind of goofy, the Ohio State Highway Patrol is completely separate, and has a "criminal" division, although OSP is responsible only for incidents on State Highways, and State Property.  Except....they also handle investigative issues for the Ohio Department of Rehabilitation and Corrections.  OSP falls under Ohio DPS, as does Liquor Control.  State Parks have Park Rangers.  Ohio also has separate Division of Wildlife Officers for each county.  BCI has investigative sections for narcotics, computer crime, white collar crime, blah, blah blah., but I don't believe BCI is under ODPS, they fall under the Attorney General's Office.  They also maintain and process all fingerprint cards, and maintain training standards for police throughout the state.......................What was the question again?  

RI has a BCI. That's all that I know about it.

MA State Police have the equivalent to a BCI, investigating all murders and major crimes "assisting" local towns that don't have the specialties.

Quoted: I know Georgia has one, so does Tennessee and Oklahoma, do any other states as well (or do they all)?  Just curious.

North Carolina has an SBI, South Carolina has the State Law Enforcement Division (SLED).

minnesota does, BCI I believe

KBI - Kentucky Bureau of Investigation.

Bob

Alabama Bureau of Investigation

Some are good investigators but I find it funny that the guy who will investigate ME if I am in a shooting and who are supposed to be the top level of investigators in the state are guys who moved up from Highway Patrol and who have never really worked any basic investigations! A new ABI "Agent" has worked less crime (other than traffic) than any 1 year rookie cop or deputy...

I hate to say it but my newest Investigator can investigate circles around any of their newer ones hands down.