House committee substitute to 1st edition makes the following changes. Changes the entity responsible for designing civilian investigator training program under GS 160A-499.6 (new provision pertaining to civilian traffic crash investigators) to the North Carolina Justice Academy (NCJA) (was, designed by the chief of police, or the chief's designee, or, if applicable, the sheriff of the county with which the city has contracted to provide law enforcement services, or the sheriff's designee, in consultation with the NCJA). Adds specification that the employment or use of civilian investigators, either full or part time, will not supplant or replace any existing sworn law enforcement personnel or otherwise reduce the number of sworn law enforcement officers employed by the city. Amends GS 20-166.1(i) (pertaining to reports and investigations required in the event of an accident) to make conforming changes to account for reports made by civilian investigators employed pursuant to new statute. Requires NCJA to develop a uniform statewide training program for civilian investigators and to make the training available to civilian investigators employed by any municipality under the new statute.