Can CID task a non-CID/MP soldier to assist with an investigation?

So I see none of my CID counter-parts have answered yet so I'll tell you what I know. First, for a little background on myself, I have worked some cases in the past with CID as a CI Special Agent in a field office (when I was with the 902nd--they were cases that involved alleged support to terrorism which is where CID and CI often cross paths). In any case, I did see actual MPs working in some CID field offices at this time in addition to plain clothes MP's conducting investigations, but these were exclusively MPI's (Military Police Investigators--MP's that have been to MPI school and have a V5 ASI I believe. They handle various cases that CID can't get to--mostly misdemeanors requiring follow-up investigation if I'm not mistaken). I have not personally seen but have heard from some of my MP friends that they have also assisted CID in the past but nothing too in-depth. My understanding is that regular every day run-of-the-mill MP's have very limited investigative training. However, based on what I said above I wouldn't put it past the realm of possibility. With that, the person you describe does not sound like he meets any of these requirements and may just be exaggerating or outright lying to look cool. But, without knowing more about him there is no way I could tell you for sure. I would take anything he says with a grain of salt based on what you are saying.

Gonna call BS on this one. I can see maybe using the member as a confidential informant but definitely not as an active investigator. That takes specialized training the average "beat cop" just doesn't receive.

Can't answer your question but I wanted to share a CID story from a long time ago. I think the statute of limitations has come and gone. ;-)

In 1973 I was part of a small detachment of MP's from Company A, 385th MP Bn, 15th MP Brigade, in Neu Ulm, Germany. There were maybe 20 of us in the detachment. I was the senior patrolman on day shift one day and was in a restricted area at an ammo dump, 4-wheeling in my new M151A2. Wasn't supposed to be there, but there were some good hills to climb and there was nothing going on that day.

I was following the trail around the perimeter fence and was part way up one particularly steep incline when I spotted an OD green canvas satchel lying next to the fence. I backed the jeep down and walked back up to get it. Looked inside and didn't know what it was so I figured I had better take it to the MP station despite having to admit where I found it.

Turned it in to the desk sergeant and he went ballistic, yelling for our MPI agent. The MPI agent went ballistic and started yelling for our CID agent. The CID agent went ballistic and tried to give it back to me, telling me to put it back where I found it and not to say anything to anybody. Turns out it was a satchel of C-4 and nobody wanted to be responsible. I refused to take it back and they were still arguing over it when I left. No idea whatever happened to it.