Integrity Assessments Investigations

Staff Resource Center

Internal tools, training resources, and team systems — for authorized IAI personnel only.

CJA Panel Vendor — S.D. Texas Harris County Approved Fort Bend County Approved TX Lic. A19944401 Confidential
◆   Core Systems
◆   Training & Certification
◆   Team Directory
Dr. Celvin G. Walwyn
Executive Director & Lead Investigator
Retired International Police Commissioner — St. Kitts & Nevis
Retired USVI Deputy Commissioner of Police for Operations
Retired Texas Police Chief (2026)
Ph.D. · Public Safety Leadership · Summa Cum Laude with Highest Honors
Certified EyeDetect® Examiner (Converus) · PCSOT Certified
Active TCOLE Master Peace Officer License
Earl A. Campbell, B.Sc.
Investigator
Licensed Private Investigator (TX)
B.Sc., Psychology · Mental Health Counseling
A.D. Walwyn, M.Sc.
Managing Member & Senior Investigator
Licensed Private Investigator (TX, since 2021)
M.Sc., Security Management
Certified EyeDetect® Examiner (Converus)
12 years — Harris County Corrections
Minority Women-Owned Business Owner (51%)
Atty. Zane Weeks
Prime Attorney Client
Harris County Criminal Defense
◆   Compliance & Confidentiality
Confidentiality Notice
This portal and all linked systems contain privileged investigative information protected under Texas law. All access is logged. Unauthorized disclosure of case information, client identities, or investigative methods is strictly prohibited. IAI operates as a CJA Panel Vendor in the Southern District of Texas, Harris County, and Fort Bend County. TX Lic. A19944401. Contact [email protected] for access issues.