Resources and Documents

Legislative Documents


LETCSA Annual Report 2023

Annual report summarizing the progress and future implementation plans of the LETCSA program at WSCJTC.

Initiative 940

SHB 1064

WAC 139-11 Concise Explanatory Statement

Concise explanatory statement for WAC 139-11, as mandated by RCW 34.05.325.

WAC 139-11 Training Rules

WAC 139-11 as adopted by the Commission on June 6, 2019. It is currently in effect. 

WAC 139-12 Concise Explanatory Statement

Concise explanatory statement for WAC 139-12, as mandated by RCW 34.05.325.

WAC 139-12 Independent Investigations Criteria

WAC 139-12 as adopted by the Commission on December 8, 2021 and filed with the Code Reviser on December 22, 2021. The language took effect on January 22, 2022.

LETCSA 24-Hour Audit & CIT Exemption, Waiver, Extension, or Variance

Independent Investigation Documents

Best Practice Guidelines - Updated October 2023 (Last annual review September 2023)

Independent Investigation of Officer Involved Use of Deadly Force Incident Guidelines.

IIT Best Practices Annual Review - Summary and Comparison (2022-23)

Conflict of Interest Form - Adopted September 2020

Conflict of Interest Assessment Form for Officer Involved Use of Force Incidents.

First Aid Guidelines - Adopted September 2020 

Guidelines preparing first responders to properly triage injuries and ensure that essential, lifesaving first aid is administered at the first safe opportunity to injured persons following a use of force incident, or any scene that is controlled by law enforcement.

Confidentiality AgreementUpdated January 2022

Confidentiality agreement for the non-law enforcement community representative on an IIT.

IIT Best Practices Work Plan - November 2023

Previous versions of documents



IIT Qualified Lead Investigator Certification Resources

Beginning December 1, 2022, IIT Qualified Lead Investigator Applications must be submitted through Acadis.


IIT Qualified Lead Investigator Acadis Application Instructions


IIT Requirements for Obtaining Lead Investigator Certification - Updated October 2022


Please note: Emailed IIT Qualified Lead Investigator applications will be accepted until Wednesday, November 30, 2022. Any emailed applications submitted after that date will not be processed and will be referred to the online webform in Acadis.

IIT Annual Training Attestation Instructions

IIT Annual Training Attestation - Implemented March 31, 2022, updated July 2023

LETCSA IIT Qualified Lead Investigator and Annual Training Requirements Policy


IIT Qualified Lead Investigator Lapsed Certification Reinstatement Application


See IIT Rosters at the link here.


See previous meeting livestreams at the link here.