Dr. Tanner has been a community corrections professional since 1970. He earned his Ph.D. in Sociology from the University of Illinois with specialties in Cognitive Social Psychology, Sociology of Law, and Evaluation Research. His primary interests are the adaptation of cognitive sciences in treatment of offender populations, cyber crime analysis, and improving the efficacy of sex offender treatment. He is a nationally recognized authority on sex offender digital behavior, grooming strategies, and sex offender management.
He is sworn staff in Colorado, serving as the Cyber Crime Analyst for the 20th Judicial District Probation Department. He has conducted over 1,700 examinations of sex offenders' devices.
The National Association of Criminal Justice Planners awarded Dr. Tanner the prestigious Weller Award in recognition of his contributions to criminal justice planning. The American Probation and Parole Association named him the 2017 recipient of the University of Cincinnati Award in Corrections, recognizing his lifetime contributions to Corrections in the United States and Canada.