Our Team

Board of Directors for the Crisis Intervention Teams Association of Colorado


Colleen Herringshaw

Colleen Herringshaw has been employed with the Douglas County Sheriff's Office since 2012 and earned CIT certification in 2013, CIT coach certification in 2014 and was appointed as a CIT course director in 2015 for the Douglas County Sheriff's Office.

Colleen is passionate about educating her peers in the importance of utilizing Crisis Intervention Training when encountering those in crisis, as well as educating others in techniques towards de-escalation and recognition of individuals who are suffering from mental health crisis.


Amanda Lane

Amanda is a Texas native and has worked in mental health/social work for 8 years prior to becoming a law enforcement officer. Amanda completed the CIT training class in 2009 while working with felony offenders seeking assistance through Arapahoe County’s original Mental Health Court. Amanda has a deep passion for special populations and enjoys providing training to officers and civilians for the betterment of the community. Amanda also enjoys hiking and playing competitive volleyball in her free time. Amanda graduated Cum Laude from the University of Houston with a bachelors degree in Psychology and a minor in Marketing.


Sarah Joswick

Sarah began her career in the criminal justice field over 22 years ago working in the Douglas County Courts and Pretrial Services. In 2007, Sarah became a police officer with the Greenwood Village Police Department and is now serving as a Corporal assigned to the Patrol Division.

During Sarah’s time with Greenwood Village, she has functioned as a School Resource Officer, Team Lead-Crisis Negotiator Team, De-Escalation instructor, the Department's Crisis Intervention Team Coordinator, Field Training Officer, and served on several committees.

In addition to Sarah’s employment with GVPD, she is also an Adjunct Instructor in the Criminal Justice Program at Arapahoe Community College where she actively teaches several courses. 


Biagio Burriesci

Biagio began his career as a Paramedic for both a Level One Trauma Hospital EMS System in NYC and for the FDNY Emergency Medical Services Division. His NYC paramedic experience since 1997 had exposed him to a great deal of mental health calls for service in the city and allowed him to actively play a role in the department’s Peer Support Group.

Biagio’s law enforcement career includes working as a Patrol Impact Officer for the NYPD and as a Police Officer with the Greenwood Village Police Department (GVPD).  His current position is the Training and Recruitment Coordinator for GVPD. In addition to his current responsibilities, Biagio serves on the department’s Crisis Negotiation Team and is an instructor for multiple disciplines. 


Attila Denes

Attila has been integrally involved in Colorado’s CIT program since 2002. He has served as a CIT course director, scenario coach, and train-the-trainer all over Colorado and much of the U.S. 

Attila also co-founded CITAC and served as the association’s first interim president. In 2018, Attila co-authored a peer-reviewed journal article on outcomes from Colorado’s first decade of CIT, which was researched in partnership with Harvard Medical School.  As a member of the Douglas County Sheriff's Office, Attila serves as the Special Victims Unit supervisor.

Attila holds a Bachelor of Science in Criminal Justice & Criminology from Metropolitan State University of Denver, and a Master in Business Administration from North-Central University.  Attila is also a graduate of Northwestern University’s School of Police Staff and Command.


Chris Gulli

Chris Gulli has 17 years of Law Enforcement experience, beginning in Arizona where he worked in the Phoenix area for 5 years. Chris has spent the last 12 years working for the Arapahoe County Sheriff's Office and was promoted to Lieutenant in March of 2015. Chris has headed the CIT program at ACSO for the previous 4 years.

Chris earned his Bachelor of Science in Political Science from Arizona State University.


Hal Mandler

Hal is a Commander with the Littleton Police Department and has been with the department since 2001. He continues to be the CIT program manager for the department since its inception and has attended the CIT certification course and the CIT coach’s course.

He is a member of the State Mental Health Advisory Board which helps guide state laws and procedures surrounding interactions with mental health clients.

Hal earned his Bachelor’s degree from the University of Northern Colorado in Criminal Justice and later completed his master’s degree from Regis University in Criminology/Emergency Management. He has completed the Northwestern Command School and completed the FBI LEEDA trilogy supervisor’s academy.


Ashley Murphy

Ashley is a Colorado native who has worked in the mental health field for the past 11 years and over the last 7 years of her career, she became heavily involved with numerous roles in the Crisis Services continuum.  Currently she works for AllHealth Network as the Crisis Diversion Manager and oversees the AHN Crisis Intervention Team as well as the AHN Walk In Clinic.  Ashley enjoys spending time with her dogs and has traveled with her husband to 25 (and counting) countries.  Ashley’s passion is to have mental health care available to everyone and to de-stigmatize mental health in the community.

Ashley earned her Bachelor of Science in Psychology from Colorado State University – Pueblo and earned her Master of Arts in Clinical Mental Health from Adams State University.  She is currently licensed with DORA as a Licensed Professional Counselor.