I would suggest that some of this is broad community expectations. People in some communities simply expect that police will come and solve all their issues. I agree with you, 911 in the vast majority of communities is the initial point of contact, but the person making the contact has an expectation and will often ask for the police. I emphasize that the communities we police as a provincial organization—not the size of Toronto, but our smaller communities—may have fewer resources. So it's always in relation to police.
On April 16th, 2013. See this statement in context.