Chief Steven Callarman
Chief Steven Callarman began his law enforcement career with the Mesquite, Texas, Police Department in January of 1990. He worked a variety of positions including patrol, criminal investigations, school resource officer, bike patrol, and public information officer. He promoted through the ranks to Captain and was commander over many departments for the Mesquite PD, including Patrol, School Resource Officers, Criminal Investigations and Training. He retired in 2014.
Callarman joined the MSU Texas Police Department in 2017 as a patrol officer and was eventually appointed as the Clery Compliance Officer and Accreditation Manager. MSU Texas's Police Department is one of only 15 institutions of higher learning to be accredited by the Texas Police Chiefs Association Foundation Accreditation Program.
Chief Callarman holds a Bachelor of Science degree from Texas Christian University. He has earned Master Peace Officer and Police Instructor certificates through TCOLE, and is a graduate of the Leadership Command College of the Bill Blackwood Law Enforcement Institute of Texas at Sam Houston State University.
Sgt. David Wilk
Sgt. David Wilk graduated high school in Amarillo, Texas and, in 1986, entered the field of law enforcement, with the Potter County Sheriff’s Office. Wilk’s police career spans over three decades and, during that time, he has worked in both municipal and county law enforcement. Throughout his tenure, Wilk has held a variety of special assignments, including K-9 handler and trainer, SWAT operator and team leader, field training officer, patrol supervisor and jail administrator.
Awards Wilk has received include the Life Saving Award, the Community Service Award, the Certificate of Merit and the Police Commendation Medal. In 2019, Sgt. Wilk retired from county service at the rank of Lieutenant and joined the MSU Texas PD team shortly thereafter.
Sgt. Wilk holds TCOLE Master Peace Officer, Master Jailer, Police Instructor and Police Firearms Instructor certificates and is a Graduate of the National Jail Leadership Command Academy (Class 18), of the Bill Blackwood Law Enforcement Institute of Texas, at Sam Houston State University.
Sgt. Wilk was promoted to sergeant in 2023.
Detective Preston Johnson
Detective Preston Johnson began his law enforcement career in 2020 with the Nacogdoches County Sheriff’s Office in East Texas, where he served as a county jailer for three years. He then advanced his training by attending the Angelina College Law Enforcement Academy. Upon graduation, he was sworn in as a Deputy Sheriff, continuing his service with the Nacogdoches County Sheriff's Office.
In 2024, Detective Johnson relocated to Wichita Falls, Texas, where he joined the Midwestern State University Police Department as a patrol officer. Demonstrating a strong commitment to public safety and investigative excellence, he was promoted to the rank of Detective.
In his current role, Detective Johnson is responsible for leading investigations and reviewing reported offenses involving the Midwestern State University community. His duties include working closely with MSU Texas patrol officers, as well as students, faculty, and staff, to ensure a safe and secure campus environment.
Amy Van Veen
Officer Amy Van Veen, a graduate of Midland High School, began her law enforcement career in 1990, as an officer with the Odessa, Texas, Police Department. Van Veen served with OPD for nearly twenty years, before retiring in 2009, at the rank of sergeant.
In 2012, Officer Van Veen returned to police work, serving with the University of Texas System Police, at both the El Paso and Permian Basin UT campuses. Van Veen’s most recent assignment was at the UTPB campus in Odessa, where she served as a police sergeant. Special assignments Officer Van Veen has held during her extensive career include Field Training Officer and Field Training Program Supervisor.
Officer Van Veen holds an Associate’s degree in Criminal Justice from Odessa College and a Master Peace Officer certificate through TCOLE. She has been serving the MSU Texas Community since September of 2020.
Officer David Bersick is a proud Vietnam veteran who transitioned into a career in law enforcement. In 2024, he completed his training at the Vernon College Law Enforcement Academy, where he gained foundational knowledge and skills in modern policing practices.
Shortly after graduation, Officer Bersick joined the Midwestern State University Police Department as a patrol officer. In this role, he is dedicated to serving and protecting the students, faculty, staff, and visitors of the MSU Texas campus.
Officer John Butler
An honorably-discharged veteran of the U.S. Navy, Officer Butler began his career in law enforcement in 1997, as a jailer with the Ellis County, Texas, Sheriff’s Office.
After obtaining his peace officer license, Butler worked for several law enforcement agencies in Texas, including the Dallas Area Rapid Transit Police Department and the Breckenridge, Texas, Police Department.
Officer Butler has been serving the MSU Texas community since 2021 and holds several TCOLE certifications, including Mental Health Officer, Police Instructor, and Master Peace Officer.
Officer Wendell Smith
A native of Wichita Falls, Officer Smith graduated from high school in Vernon, Texas, and continued his educational pursuit, earning an Associate’s Degree in Criminal Justice in 1996.
Ofc. Smith began his law enforcement career in 1998 as a police officer with the Vernon, Texas, Police Department, an agency from which he retired in 2021. While with the Vernon Police Department, Officer Smith promoted through the ranks to the position of Patrol Lieutenant, the assignment he held at the time of his retirement.
Officer Smith has been serving the MSU Texas community since 2021 and has earned TCOLE’s Master Peace Officer certification.
Officer Demetrius Crandall II
Demetrius.Crandall@msutexas.edu
Officer Demetrius Crandall II began his law enforcement career with the Texas Department of Criminal Justice, where he served with distinction as a corrections officer for seven years. During his tenure, he demonstrated strong leadership and dedication, rising through the ranks to the position of Sergeant.
Committed to advancing his career in public safety, Officer Crandall enrolled in the Vernon College Law Enforcement Academy in 2024. Upon completion, he began serving as a Reserve Deputy Sheriff with the Clay County Sheriff’s Office in Clay County, Texas.
In November 2024, Officer Crandall continued his law enforcement journey by joining the Midwestern State University Police Department as a patrol officer. In this role, he contributes to the safety and well-being of the university community through proactive patrol, response to incidents, and support of campus safety initiatives.
Officer Dylan Riggins
Officer Dylan Riggins began his law enforcement career in 2017 with the Jack County Sheriff’s Office in Texas, where he served as a county jailer. After a year, he transitioned to the Iowa Park Police Department as a public safety dispatcher, gaining valuable experience in emergency communications and coordination.
While serving as a dispatcher, Officer Riggins attended the Vernon College Law Enforcement Academy and earned his Texas Peace Officer License. In 2022, he continued his commitment to public safety by joining the Clay County Sheriff’s Office as a Deputy Sheriff, where he served with distinction in many capacities.
In 2024, Officer Riggins shifted his focus to school-based policing, accepting a position with the Wichita Falls ISD Police Department as a School Resource Officer. There, he played an important role in fostering safe learning environments and building strong relationships with students and staff.
In 2025, Officer Riggins brought his diverse experience and dedication to service to the Midwestern State University Police Department, where he currently serves as a patrol officer. His background in corrections, dispatch, field operations, and school policing makes him a well-rounded asset to the MSU Texas campus community.
Supplemental Officer Michael Bland
After having lived in several countries throughout the world, Supplemental Officer Michael Bland and his family settled in the Wichita Falls area, where Bland graduated from Hirschi High School. Officer Bland began his career in law enforcement with the Wichita County Sheriff’s Office in 1987 and has worked for several police agencies, retiring from Texas Tech University PD in 2009 as the Assistant Chief.
Officer Bland is an instructor in several specialty areas, including Expandable Baton, Weapons of Mass Destruction, DNA Forensics, RADAR, and the Sexual Assault/Family Violence Course. Officer Bland holds numerous specialties including hostage negotiations, crime scene investigation, cybercrimes investigation, subconscious communications for Interview and interrogation and numerous proficiency certifications from FEMA in Incident Command Systems and Emergency Management.
A former U.S. Army Officer, Officer Bland honorably retired at the rank of Major, and holds numerous additional skill identifiers. During his military tenure, Officer Blend’s areas of specialty included Air Borne & Air Assault, Special Operations and Plans and Operations. Bland is a graduate of the LEMIT Leadership Command College, holds a graduate degree and a TCOLE Master Peace Officer certificate. Ofc. Bland has served the MSU Community as a supplemental police officer since 2011.
Supplemental Officer William "Brad" Love
Officer Love has been in law enforcement for over thirty years, having begun his career in the Texas Panhandle in 1988. In 1995, Love accepted a position with the Wichita Falls Police Department where he worked in a variety of capacities, including patrol officer, field training officer, misdemeanor detective and ultimately rising to the level of a crimes against persons detective, where his talents were focused on investigating complex felony cases, including robberies, aggravated assaults, sexual assaults, and homicides.
While with WFPD, Love served on the Department’s search and rescue dive team, was a member of the department Honor Guard, and received specialized training in the areas of blood spatter analysis, interview and interrogation, and crime scene search. Love retired from the Wichita Falls Police Department in 2018 and accepted a position with the MSU Texas Police Department, where he continues his service to his community.
Officer Love is a retired U.S. Army National Guard Sergeant and TCOLE Master Peace Officer, Police Instructor and Crime Prevention Inspector. Love holds a Bachelor Degree from MSU Texas and is currently pursuing his Masters. In his off-duty time, Love is an accomplished amateur photographer and we are appreciative of his photography work, which adorns our website.