RCMP are throughout Canada in every province.
In Ontario they deal with Federal Issues in this juristiction , such as border smuggling, import/export, and they do assist Ontario provincial police and others with certain cases.
OPP do police Ontario, but if a federal offense is obtained from the OPP in certain cases, they refer it to the RCMP who will investigate or deal with it.
Any provincial offense is with the OPP, or Regional Municipality/County/ District.
RCMP are 'O' Division in Ontario. They have 11 detachments in the province of Ontario.
except Ottawa, which 'a' division. (National Capital Region). Which would be the RCMP headquarters.
It would be the same as your (U.S.) county sherrif = county/regional municipality, State police = provincial police , FBI = RCMP
Also RCMP 'O' Division will be operating on a IP-Based P25 Digital Public Safety Radio System which will be used for the 2010 June summit in Toronto
here is a link to the article...
http://www.marketwire.com/press-rel...io-Network-Royal-Canadian-Mounted-1099301.htm