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School Resource Deputies



The goals and objectives of the School Resource Deputies can be defined but not limited to the following categories:

  • Safety and security on campus.
  • Educate students, school staff and parents about law enforcement functions and responsibilities.
  • Reduce truancy by enhancing the learning environment.
  • Create good will and increase understanding of law enforcement.
  • Strengthen student/police relationships.

Deputy Dave Tackett is assigned to the Campbellsport School District.    
Deputy Dave Tackett

Deputy Tackett began his career with the Fond du Lac County Sheriff's Office in 1996 as a Correctional Deputy.  Tackett was promoted to the Patrol Division in 1998. In January 2011, Tackett was assigned to the Oakfield, Amity and Elmwood schools as a School Resource Deputy (SRD). In August 2018, Tackett was assigned to the Campbellsport School District.  Deputy Tackett has also worked with several of the parochial schools in Fond du Lac County. In addition to his SRD duties, Tackett is an active member of the DIVE Team, conducts forensic interviews for children ages 5-12 and does Driver's Education presentations for the Sheriff's Office.

Tackett is a graduate of Horace Mann High School in North Fond du Lac and holds a Bachelor's Degree in Criminal Justice, with a minor in Sociology, from UW-Oshkosh.

Tackett has provided a wide variety of presentations, to all ages and is also an instructor at Moraine Park Technical College. Tackett enjoys working in the classroom setting and will use these experiences in developing good relations with the students, faculty and the community as a whole.


Deputy Derek Rehfeldt is assigned to the Oakfield School District

 Rehfeldt, Derek

Deputy Rehfeldt began his career in law enforcement in 2013 working as a correctional officer at the Sheboygan County Detention Center. In 2015, he began working for the Fond du Lac County Sheriff’s Office as a patrol deputy. Deputy Rehfeldt began his role as a School Resource Deputy (SRD) in 2018 in the Oakfield School District.

In addition to his school duties, Deputy Rehfeldt is also a part of the Deputy Reserve Unit.

Rehfeldt is a graduate of Winnebago High School (IL) and has a Bachelor’s Degree in Justice and Public Policy from Concordia University Wisconsin. He enjoys his placement in the schools because it gives him an opportunity to work with kids on a daily basis and promote a positive outlook on law enforcement.

Deputy Julie Flaherty is assigned to the Rosendale-Brandon School District.
Deputy Julie Flaherty

Deputy Flaherty began her career with the Fond du Lac County Sheriff's office in 1989 as a Correctional Officer. She was promoted to the Patrol Division in 1992, and began her role as a School Resource Deputy (SRD) in 2001 in the Rosendale-Brandon School District. As part of her duties in the school district, Deputy Flaherty instructed the program formally known as DARE. She was one of the officers who was instrumental in the creation of the new curriculum currently used known as the A.C.E. program, (Anti-Crime Education).

In addition to her school duties, Deputy Flaherty is a hostage negotiator for the SWAT Team and an interviewer for the Victim Sensitive Protocol Team.

Flaherty is a graduate of New Holstein High School and has an Associate's Degree in Police Science from MPTC. She enjoys her placement in the schools because it gives her an opportunity to be a positive role model for the students as well as a resource for them.

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