They are known for their bright red uniforms, but unkown to most people, those uniforms aren't actually used in every day work.. They are FORMAL dress
On rare occasions, a Mountie can be a British national. This is rare (see Urban Dictionary definition Rare as Rocking Horse Shit). More commonly, a Mountie comes from developing countries and receives sub-standard training in the UK.
"I'm afraid that's beyond my abilities, I'm a Mountie"