Last time I heard from RCMP recruiting is that they will not take anyone as a lateral without further training them in either Depot Div or if you're in BC, Chilliwack RTC.
One of the arguments I've heard for why MPs can't lateral into allot of the different police services is because of their lack of experience. Now, please don't jump on me for this, and let me clarify this. The argument that I've heard was that MPs do not see nearly the same amount of calls of the types of calls for service as a member (I mean all sworn police officers in a service). The likelihood of an MP dealing with members of the PUBLIC on every call is almost NIL, because MPs service those who are within the CF community. In the CF no matter what happens, a rank structure, military discipline and chain of command exists, making the procedures and methodology of handling a call, or a case very different then on the street. MPs do not actively engage in high risk vehicle stops, execute arrest/search/seizure warrants on a regular basis.
This is all because of the population that the MPs deal with. Very different from those dealt with by their 'civilian' counterparts on the street. This is how some have argued it, and I can see their points.
This is definitely not saying that applicants with Reg MP experience should be discouraged to apply with police services, it's just that there is a high probability that they will be treated just like anyone else. However, the experience gained through investigative work, interrogation techniques so on and so forth, would most definitely come in handy when you've graduated and you're now on the street.
I don't know, that's just my 0.02 rupees. I'm sure some of our more learned colleagues would either agree or disagree with me.