What special training, demeanor, and other conditions should be considered by the police department interviewers?

First, make any edits necessary based on the feedback from your instructor.
Amend the general order to include caution, techniques, and skills authorized for use in obtaining statements from special populations (e.g., children, elderly, and the mentally challenged).

What special training, demeanor, and other conditions should be considered by the police department interviewers?

Children
The elderly
The mentally challenged
The high performer might also suggest other special populations to consider, if any.