When I was in the Navy, there would always be that one Marine or fellow sailor who would say
"My mom's a nurse, and she said I need this"
To which the reply would be "then have your mom write you a script and go out in town and get it filled"
Or you can let me do my job and I will confer with my Doc and come up with an action plan.
Which ever works for you, works for me.
So when a law enforcement professional provides "advice" it is always considered, yet tempered with the knowledge that like medicine, the practice of law is just that, a practice, not an exact science.
And depending on the "Instructor" (and their ideology) of the knowledge gained will determine the value of the instruction.
Dr. Josef Mengele was a competent Dr. as the history goes, but still a monster.
No judgement, just an observation.
“To which the reply would be “then have your mom write you a script and go out in town and get it filled”
Advice is not always appreciated, when it is not tempered by reality.