Executive Staff
Greg Mashburn, Director
Greg Mashburn was named as the OSBI Director and began his service on March 1, 2025. He graduated from Idabel High School in 1990. His mother worked in the McCurtain County District Attorney’s Office in Idabel for 20 years. For the past 30 years, Greg and his family have lived in Norman.
Mashburn attended Harding University in Arkansas on a football scholarship, graduating in 1995. He then obtained his Juris Doctorate from the University Of Oklahoma School Of Law in 1998.
He has spent a decade learning to advocate for victims as an Assistant District Attorney in Oklahoma County. There he built an impressive record, becoming a Division Chief just six years after he began his career.
In 2006, Greg was elected as District Attorney for District 21 which included Cleveland, Garvin, and McClain Counties. He spent 18 years as the DA building an impressive record both as a prosecutor and an administrator. In 2008, Mashburn was named outstanding District Attorney for the State of Oklahoma after only his first year in office. In 2024, he was selected a second time. In addition, his office and staff were recognized locally and statewide with numerous awards for excellence.
On the State level, he previously held a leadership position with the Oklahoma District Attorney’s Council having been appointed by the Oklahoma Bar Association to serve on the five person District Attorney’s Council. Prior to that, Greg served as president of the District Attorney’s Council and the Oklahoma District Attorney’s Association. In 2015 Governor Mary Fallin appointed Greg to serve on the Oklahoma Bureau of Narcotics and Dangerous Drugs Control Commission. Nationally, Greg has served on the NDAA Board of Directors and has been a faculty member at trainings across the country.
Greg is a member of the Alameda Church of Christ. For those who know Greg Mashburn well, his dedication to public service is evident and constant.
Steven Carter, Deputy Director
Deputy Director Steven Carter has served the citizens of Oklahoma as a law enforcement officer for over 29 years. He began his law enforcement career with the Department of Corrections (DOC) in 1994. He was a Probation and Parole Officer and Internal Affairs Investigator with DOC, prior to beginning his career with the OSBI.
In 2007, Carter began his OSBI career in Antlers, Oklahoma, as a general assignment agent investigating major crimes. Carter was promoted to Lieutenant and Captain while assigned to the Southeast Region. In September 2022, he was promoted to the rank of Investigative Division Director. On February 01, 2024, Steven was selected as the OSBI Deputy Director.
Carter has a Bachelor’s degree in Psychology from Southeastern Oklahoma State University, and a Master’s degree in Criminology from Oklahoma City University. Carter is a graduate of the 147th Southern Police Institute Administrative Officers Course and was awarded the Edward Campbell Service Award by his peers while attending this course. Carter is a licensed Oklahoma Polygraph Examiner with over 3,000 continuing education hours, and holds an advanced CLEET Law Enforcement Certification.
Carter has been married to his wife Rebekah for 28 years, and together they have two sons and one granddaughter.
Administrative Offices
John Jones
Division Director, Investigative Services
Division Director Jones began his career with the OSBI in 1996 as a Physical Evidence tech for the lab. He was promoted to a Special Agent for the Southeast Regional Office (SERO) in 1998 where he stayed until 2019. In 2019 Jones was promoted to Lieutenant over the Special Investigations Unit (SIU) and then to Captain of SIU in 2022. In February of 2024 he took over the role of the Investigative Division Director. Division Director Jones is a graduate of Crowder High School, Eastern Oklahoma State Junior College and East Central Oklahoma University.
Erin Henry
Division Director, Information Services
Erin Henry is the Division Director for the Information Services Division of the Oklahoma State Bureau of Investigation (OSBI).
Ms. Henry has worked for the OSBI for over 25 years, working in a variety of roles in the Criminalistics and Information Services Division. In the Criminalistics Division, Ms. Henry worked as a Forensic Biologist, CODIS State Administrator and Unit Supervisor, and as a Criminalistics Administrator and Quality Manager. Ms. Henry later oversaw the OSBI’s Office of Professional Standards before moving to her current role in the Information Services Division.
Over the years, Ms. Henry has overseen laboratory accreditation with the American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB) and agency accreditation with the Commission on Accreditation for Law Enforcement Agencies. Ms. Henry is a former member of the Association of Forensic Quality Assurance Managers (AFQAM) and served on the Program Committee and as an Executive Board member. In addition, she served on the ASCLD/LAB Board of Directors and the National Institute of Standards and Technology Organization of Scientific Area Committees (NIST OSAC) Quality Infrastructure Committee.
Ms. Henry currently serves on the National Crime Prevention and Privacy Compact (Compact) Council and is an appointed member of SEARCH, the National Consortium for Justice Information and Statistics, where she serves on the Board.
Brad Green
Division Director, Support Services
Support Services Division Director Brad Green is a 31-year veteran of law enforcement. He began his career with the Northeastern State University Campus Police Department in 1992. He has worked for the Tahlequah Police Department, and Oklahoma Attorney General’s Office.
In 2004, Green began working as a Special Agent for the OSBI in the Crime Scene Unit. From 2016 to 2019 he was the Assistant Special Agent in Charge of the Eastern District Crime Scene Unit. In 2019 he became the Captain over the Northeast Regional Office in Tulsa and in 2023 became the Captain over the statewide Crime Scene Unit. On March 11, 2024 he was selected as the Support Services Division Director.
Green holds a Bachelor’s Degree in Criminal Justice from Northeastern State University and a Master’s Degree in Criminal Justice from Northeastern State University. He is a 2019 graduate of the FBI National Academy. Green is certified through the International Association of Identification as a Certified Crime Scene Investigator. Green is currently an Adjunct Instructor at Oklahoma State University and has been an Adjunct Instructor at Oklahoma Wesleyan University as well as Northeastern State University.
Green has been married since 2001 and has two sons.
Janice Joslin
Division Director, Criminalistic Services
Criminalistics Services Division (CSD) Director Janice Joslin has been with the OSBI since 2004, serving the citizens of Oklahoma in the OSBI laboratory system for over 20 years. Joslin earned a Bachelor’s degree in Biology from East Central University in May 2002 and a Master’s degree in Forensic Science from Oklahoma State University Center for Health Sciences in May 2004. She began her career at the OSBI Central Laboratory in Oklahoma City in the Forensic Biology Unit, before moving to the Northeast Regional Laboratory in Tahlequah in 2005.
In 2010, Janice promoted to the position of Forensic Biology Technical Manager, overseeing the technical operations and training program for the serology and DNA units for the OSBI. During her time as Technical Manager, Janice had the opportunity to become a part of the Scientific Working Group on DNA Analysis Methods (SWGDAM) Quality Assurance Committee assisting with revisions of the Quality Assurance Standards for Forensic DNA Testing and DNA Databasing Laboratories.
Joslin moved back to Oklahoma City in 2019 to take on the role of Criminalistics Division Quality Manager. As OSBI’s Quality Manager, Janice was active in the Association of Forensic Quality Assurance Managers (AFQAM), serving on the Executive Board and as the Marketing and Communications Committee Chair for two years.
In October 2022, she began her current assignment as Criminalistics Division Director.
Anne Simons
Assistant Division Director, Information Services
Anne Simons, an Ohio native, came to Oklahoma to attend school at the Oklahoma State University where she graduated with a Bachelor of Science in Hotel and Restaurant Administration and a minor in Business Administration. Upon graduation, Anne spent eleven years working in management in the food service industry.
In July of 2001, she joined the Oklahoma State Bureau of Investigation in the Human Resources Unit. Anne managed the entire recruitment function for the agency among other functions.
In 2014, she moved to the Information Services Division where she served as the Section Manager for the Data Collection, Licensing and Reporting Section before being appointed as the Information Services Division Assistant Division Director in April of 2024.
Anne is married with two children.
Travis White
General Counsel, Legislative Liaison
Bio and photo to follow
Gerald Davidson
Special Investigator, Office of Professional Standards and Training
Gerald Davidson began his career in law enforcement with the Norman Police Department in 1975 as a patrol officer. In 1980, Davidson joined the Oklahoma Highway Patrol (OHP). Davidson’s assignments with the OHP included numerous field troops, special service troops, and administrative units. Davidson’s career progressed from trooper to agency administration until retirement in 2019.
In 2019, Davidson joined the Oklahoma State Bureau of Investigation as a background investigator. Davidson was transferred to the Office of Professional Standards and Training to serve as its manager in 2021.
Davidson has enjoyed working with many talented, professional individuals performing a multitude of diverse tasks in serving to keep Oklahoma safe.
Hunter McKee
Public Information Manager
McKee was born and raised in the Oklahoma City area, graduating from the University of Oklahoma in 2016. He began his career as a news reporter for the Fox affiliate in Champaign, IL. In 2017, he took a video and editing position with the Oklahoma City Thunder and then joined KWTV News 9, where he covered a variety of stories throughout the state of Oklahoma.
After three-in-a-half years as an Oklahoma City reporter, McKee decided to become the Public Information Officer for the Cleveland County Sheriff’s Office. As their spokesperson, he conducted on-camera interviews, created content for their social media pages, and assisted with community events.
McKee says he’s excited to be a part of the OSBI family and strives to assist the citizens of Oklahoma. He looks forward to representing our agency moving forward.
Vernon Glover
Project Manager
OSBI Project Manager Vernon Glover has been an employee with the OSBI since 2002. He began his career at the OSBI as a Material Management Specialist before moving to the OSBI’s Procurement Unit in 2004. In 2011, Glover became the Contracting and Acquisitions Administrator for the OSBI Purchasing Unit. Vernon has twice been awarded the Oklahoma Association of Public Procurement’s (OkAPP) Professional Public Buyer of the Year. On March 5th, 2024, Vernon was selected as the OSBI Project Manager.
Glover has a Bachelor of Science degree in Management & Ethics from Mid-America Christian University. Vernon was awarded Mid-America Christian University’s Outstanding Research Project with Christian Applications prior to his graduation in 2006.
Glover has been married to his high school sweetheart, Cheri for 36 years, together they have two sons and one grandson.
OSBI Headquarters
6600 North Harvey Place
Oklahoma City, OK 73116
Phone: 405-848-6724