I I've in the north west and when I leave school I want to go into the mounted police. What course would I take at college to get into this career?

I suggest you call the RCMP (if you live in Canada) tell them what you want to do and ask them what you should major in before applying to them.

To apply for a job as a civilian member of the RCMP, you must:

Be a Canadian citizen; if you were born outside of Canada, you must become a Canadian citizen before applying to the RCMP
Be of good character: you must possess integrity, honesty, professionalism, compassion, respect and accountability, which will be assessed through the suitability interview
Meet the position's education / experience criteria
Meet the position's linguistic requirements
Meet the physical and medical requirements of your particular employment category
Civilian member applicants will be required to undergo security and personal suitability interviews or tests designed to assist in the selection of the most suitable candidates. A civilian member is subject to a probationary term. During this period there is a requirement to meet specific performance standards designed for each category of employment, and there may be a requirement to qualify in specialized training programs.

Here is their website. RCMP - Home