Law Enforcement Administration

Internal Affairs One: The Investigative Process


Plano, Texas, USA

Past Event

18 Hours TCOLE Credit

ILEA Headquarters
at The Center for American and International Law
5201 Democracy Drive
Plano, Texas 75024

View Map

Registrar: +1.972.244.3404
ILEA: +1.972.244.3430 
Fax: +1.972.244.3431


This two day, nationally-prominent program will provide participants with the knowledge and insights required to conduct and administer timely, objective, and thorough internal affairs investigations. This comprehensive introduction includes an overview of the importance of competent administrative investigations, preventing employee misconduct, section functions and responsibilities, a thorough discussion of employee rights, complaint investigation procedures, officer-involved shooting, and in-custody death investigations, using video evidence in use of force investigations, and workplace searches, and special testing.


Tuition includes all instruction and handouts. Lodging and meals are excluded.

  • $450 ILEA Member
  • $500 Non-member


  • Beginning the Investigation
  • The Investigation Process
  • Interviewing the Accused
  • Due Process Rights
  • Concepts of Police Discipline
  • Compelled Statements and Exculpatory Evidence
  • Liability in Law Enforcement Operations
  • Truthfulness and Other Issues
  • Use of Force and Preliminary Force Investigations
  • First Amendment Issues
  • Initiating the Complaint Process

Who Should Attend

  • Internal affairs investigators
  • Police department legal staff
  • Human resources personnel
  • Law enforcement supervisors and executives

Schedule and Faculty

8:30am – 4:30pm Daily

Kevin M. Diehl is a Sergeant with the Southlake, TX Police Department. In 2014, Sgt. Diehl was transferred to the Professional Standards Division and took over the Internal Affairs unit. He has conducted several investigations within his department and successfully guided the agency through a national re-accreditation process (CALEA) assisting to earn the agency a gold standard CALEA accreditation with excellence. In his role in Professional Standards, Sgt. Diehl is responsible for conducting Internal Affairs investigations for both the police and the fire department, supervising background investigations, Photo-Enforcement Program, Community Initiatives, Records Division, and Accreditation. Sgt. Diehl is a Police Professionalism, Background Investigations, Internal Affairs, and Police Ethics Instructor.

Sgt. Diehl holds a Bachelor of Science in Criminal Justice Administration with a certificate in Criminal Justice Management (BSCJA/CJM) from the University of Phoenix and a Master of Public Administration (MPA) also with the University of Phoenix. Sgt. Diehl is an Adjunct Faculty Member at the Institute for Police Technology and Management (IPTM), the Tarrant County College Basic Police Academy, and the North Central Texas Council of Governments (NCTCOG) Basic Police Academy where he instructs new and existing officers in Internal Affairs, Police Professionalism and Ethics, SFST / DWI enforcement, and Taser. He also conducts in-service training at both locations for currently serving officers on Background Investigations, Internal Affairs, Taser, and SFST/DWI Enforcement. Sgt. Diehl is a Master Peace Officer with the Texas Commission on Law Enforcement (TCOLE) and Georgia Peace Officer Standards and Training Council (GAPOST).

TCOLE Credit

Law enforcement personnel attending this course are eligible for eighteen (18) hours of Texas Commission on Law Enforcement (TCOLE) credit.

Overnight Accommodations

Hyatt Place Dallas Plano
3100 North Dallas Pkwy, Plano TX 75093 
Corporate Discount Code: 757

Book Your Hotel Here

Other Information

Photo/Audio/Video Release

Registration for or attendance at this event acknowledges consent to be recorded or photographed. We reserve the right to use any photograph/video taken at our events, without the expressed written permission of those included within the photograph/video. We may use the photograph/video in publications or other media material produced, used or contracted including but not limited to: brochures, invitations, books, newspapers, magazines, television, websites, annual reports, newsletters, etc. To ensure the privacy of individuals, images will not be identified using full names or personal identifying information without written approval from the photographed subject.

Nondiscriminatory Policy

The Center for American and International Law does not discriminate on the basis of race, color, sex, religion, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status in educational activities, scholarship programs or admissions.

Course Cancellation Policy

Occasionally, the Institute for Law Enforcement Administration (ILEA) may be forced to cancel a scheduled program. Whenever possible, the decision to cancel is made at least fourteen days prior to the start of the program, and registered participants are notified once that decision has been made. If the distance to the training site requires that you make airline and/or hotel reservations, please contact ILEA (+1.972.244.3430) to inquire about the status of any program before making travel arrangements. While paid registrations in cancelled courses will be refunded in full, ILEA will not be responsible for monetary loss due to cancellations or changes in airline or hotel reservations.

Eligibility Policy

The Institute for Law Enforcement Administration provides  professional education and technical support to the law enforcement community. 

A registrant in an ILEA program must be a sworn officer; a civilian employee of a law enforcement department; or an employee of a municipal, county or state agency.

Anyone interested in attending an ILEA program who does not meet the above standard requirements will need to request advance approval. Such requests will be considered on a case-by-case basis.

Privacy Policy

We do not sell or rent information to any outside parties. By providing your information, you will receive postal and electronic communications from the Institute for Law Enforcement Administration (ILEA) of The Center for American and International Law (CAIL) in accordance with CAIL's Privacy Policy. If we co-sponsor a program with another organization, information may be shared between the parties. All such co-sponsors will be identified on the event details and registration page. At any point, you can opt-out or unsubscribe by selecting either link at the bottom of each email or call us at 972.244.3400.

Sponsor an Event