I'm not talking about a CAF process, such as CFPAS, specifically. I'm using it as an example of, more importantly, the PEOPLE who the CAF entrusts to properly employ processes to evaluate other CAF members, etc. In that context, PERs/PDRs are a good example, I think.
"if they can't be trusted to administer a PT test, how can the same people be entrusted to administer a PER, of which PT test results for a small part of".
If the CAF leaders from the rank of MCpl and up can't administer a simple PT test, then we as a military have some kind of systemic ethical deficiency. Personally, I do not think that we do and that NCOs, Warrant/Petty Officers, and Commissioned Officers are fully capable of administering the FORCE test. Will there be some who "score unnecessarily harshly"...of course; the RCAF recognizes that junior instructors will mark harder than experienced ones - it is included in the Flight Instructor Course content and explained "why" this might/does happen. Knowing/accepting that as fact, I monitored junior personnel new to any instructional roles more closely than those with 6, 12 + months of instructional experience. I think that is normal, as well.
I'm not saying all, or even most units would do it, but pretending it wouldn't happen is unrealistic. Just as unrealistic to my mind, is pretending the CAF would catch all or even most of the instances of it happening.
Using your logic, no one should drive a car because someone will drive impaired. Punish those who abuse their authority accordingly.
If you were looking into a claim that someone's CoC had falsely given a failure on the PT test, who would you believe in the last scenario I presented? The bag of hammers, or the CoC?
I would believe neither; it would be an abuse of authority allegation and that is not something I'd "flip a coin" over; failing a fitness test AND abuse of authority are fairly serious performance and/or conduct deficiencies. A PT test failure is pretty routine in the COAs to be taken; the abuse of authority, not so much. In that case, I would gather all the facts available, and using the balance of probabilities, make the best recommendation, to the superior officer who tasked me to investigate, for their determination. If conducting an informal AI, up to a UDI or SI, I'd have some left/right of arcs in the form of verbal/written TORs.
If I had an NCO that was one of my subordinates who was intentionally failing other subordinates of mine/theirs, that individual would be dealt with as harshly as my CofC would permit. RMs, charges if warranted, required PER scoring and narrative...the more serious the transgression, the more serious the consequences.
I'll agree that there is a likelihood someone will abuse their position as "test evaluator". If I had a NCO in my unit I thought "might" do something...as a leader it would be for me to mitigate that risk for my subordinates and superiors. We have tools, policies and procedures to mitigate that, and to deal with those who have
ethical choice issues/deficiencies.
My last thought; DS SOLUTION. NCMs and Officers do not test people from their own unit/section. As an Aircrew WO, I would administer the tests to the maintenance pers at the Sqn, Maint NCMs and Officers would administer test to aircrew pers.