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Office of Traffic Safety

A Division of the Minnesota Department of Public Safety

Law Enforcement Liaisons

Connecting OTS to Minnesota Agencies

Law enforcement liaisons (LELs) are a resource to local agencies regarding traffic enforcement programs and information. They are available to assist with informing governing bodies of the importance of traffic safety, motivating officers and contacting the media. 


Find Your LEL

Use this map ​to identify your LEL.


Metro Liaison: Bill Hammes

Phone: 763-898-8310

E-mail: Hammes105@gmail.com

Bill joined OTS on Oct. 1, 2013 after retiring as a Sergeant from the Lino Lakes Police Department. During his 27 years of service, Bill was part of the Anoka County group that implemented the Anoka County DWI Task Force. In addition, he is a graduate of the FBI National Academy, 211th session.

Metro is defined by State Patrol Districts 2400 and 2500.


Southern Minnesota Liaison: Scott McConkey

Phone: 507-720-2041

E-mail: smcconkey@hickorytech.net

Scott joined OTS in 2011 after retiring as a Lieutenant from the State Patrol's Mankato District. He has served the past 34 years within the law enforcement community in a variety of areas including the Minnesota State Patrol, the Kandiyohi County Sheriff's Department and the Fergus Falls Police Department. His diverse background has given him a passion for traffic enforcement through coordinated multiple law enforcement agency participation.

Southern Minnesota is defined by State Patrol Districts 2100, 2200 and 2300.


Northwestern Minnesota Liaison: Becky Putzke

Cell: 218-838-7806

Email: becky.putzke@gmail.com

Becky joined OTS in March 2016 as the interim LEL, and became the permanent LEL in October, 2016. Becky retired as a Sergeant from the Brainerd Police Department in August, 2013. She has 27 years of experience in law enforcement, and worked as a part-time driving instructor teaching Emergency Vehicle Operations and Pursuit Intervention Tactics. She has a Bachelor of Science degree from Bemidji State University in criminal justice, and graduated from Police Staff and Command School from Northwestern University.  

Northwestern Minnesota is defined by State Patrol Districts 2600 (St. Cloud), 2900 (Detroit Lakes) and 3200 (Thief River Falls). 


Northeastern Minnesota Liaison: Frank Scherf 

Cell: 218-244-5873

E-mail: frankscherf3@gmail.com

Frank joined OTS in 2011 after retiring as Deputy Chief from the Grand Rapids Police Department. He began his career in Marshall, Minn. but returned to his hometown department of Grand Rapids. Frank was commander of Grand Rapids/Itasca County SWAT team and also taught various law enforcement programs for Hibbing Community College. 

Northeastern Minnesota is defined by State Patrol Districts 2700, 2800 and 3100.