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The Northeastern Regional Laboratory is located in Tahlequah, Oklahoma.  

Operating hours are 8 a.m. to 5 p.m. Monday through Friday with the exception of state holidays.

If assistance is required, please call the number listed below or  (405) 848-6724 or 1-800-522-8017 if outside Oklahoma City and assistance will be provided.

The Northeastern Regional Laboratory provides Forensic Biology and Forensic Chemistry services to the Northeastern counties of Oklahoma.

Click here for a list of counties the Northeastern Regional Laboratory serves.


Evidence Acceptance Hours:

Evidence will be accepted between 8 AM-4 PM Monday through Friday.

Officers submitting evidence must be at our facility before 4:00 PM to begin submitting evidence.  Our Evidence Tech Units will close promptly at 5:00 PM each day.  As a result, if an evidence submittal is started before 4:00 PM but not completed by 5:00 PM, the remaining evidence will be returned to the officer, and he/she will be required to return the next business day to complete the evidence submittal.  

Therefore, to avoid any inconvenience, officers with large amounts of evidence to submit are encouraged to submit the evidence to the OSBI lab early in the day.


OSBI Northeast Regional Lab


OSBI Northeastern Regional Laboratory

1995 Airport Parkway
Tahlequah, OK  74464

Phone:  918-456-0653
Fax: 918-458-0037

Directions to Northeastern Regional Laboratory