Meet the EPIC Team

EPIC’s Vision

A restorative, transparent and collaborative service system.

EPIC’s Mission:

EPIC collaborates with justice partners, using research-informed approaches, to improve outcomes in Colorado Communities.

EPIC’s Core Values:

  • Adaptive
  • Collaborative
  • Impactful
  • Service-Oriented
  • Transformative

Meet the Team

EPIC is a small group whose purpose is to promote the actualization of human potential. We are taking on the challenge of promoting a more collaborative justice system that can move towards common goals. In service to this task, we undertake our work with persistence, with support for each other, and with a clear focus on the purpose of our work. If your agency chooses to engage in a partnership with EPIC for the services we provide, you will be working with one to two primary Evidence-Based Practices Implementation Specialists. 

Diane Pasini Hill

EPIC Manager

Diane Pasini-Hill manages the EPIC team. Prior to joining EPIC, she spent 17 years as a researcher and supervisor with the Colorado Division of Criminal Justice Office of Research and Statistics (ORS). During that time, Diane conducted many criminal justice program evaluations and co-authored several ORS project evaluation papers. She also worked as a therapist for youth, adults, and families for seven years earlier in her career. Diane earned her bachelor’s degree in Criminal Justice and master’s degree in Counseling Psychology and Counselor Education.



EBP Implementation Specialist

Michael Guevara


EBP Implementation Specialist

Marlys Merrill has 10+ years of working in the Criminal Justice sector. She obtained her Bachelor of Arts in Sociology with an emphasis in Criminal Justice from Colorado State University and thereafter received her Masters of Science in Research of Counseling Studies with an emphasis in Addictions.

Her work currently consists of assisting local criminal justice agencies In the State of Colorado with leadership management, staff capacity building, education and comprehensive implementation of evidence-based practices. Her work has allowed her opportunity to develop expertise in implementation science, change management, curriculum development, leadership strategies, coaching, and mentoring. Marlys is a training instructor for Thinking for a Change, motivational interviewing, and case management practices. She is also a seasoned trainer in evidence-based practices trending in the Criminal Justice community and is a member of the Colorado Implementation Collaborative (CIC) and Global Implementation Society (GIS).

Prior to her work as an Implementation Specialist, Marlys worked as a probation officer, where she collaborated with community organizations, assisting in holistically supporting clients in the Criminal Justice System by using the Risk-Need-Responsivity model. She has subject matter expertise in risk assessments, motivational interviewing, contingency management, and case management and planning.




EBP Implementation Specialist

Shelley Siman has 20 years of experience working in social services (case management, program management) the private sector (database marketing, information technology, photography) and social science research and evaluation. Prior to joining EPIC, Shelley worked with the City and County of Denver as a criminal justice planner/analyst in the Department of Safety. In this position, Shelley served as the Transition from Jail to Community coordinator and liaison to the National Institute of Corrections/Urban Institute technical assistance team to implement an evidence-based model of jail reentry in Denver. She also coordinated work and conducted analysis to address racial disparities in Denver’s criminal and juvenile justice systems. Shelley is a training instructor for Thinking for a Change and is passionate about evidence-based practices and working with justice-system involved people. Shelley has a BA in Fine Arts and Psychology from North Park University in Chicago and an MA in International Human Rights and Global Health Affairs from the University of Denver.


EPIC Administrative Assistant

Jill Trowbridge