I don't have any expertise, but... I think it would. A dissertation proving that cops on the road slow down traffic might be able to effect public policy. We

I don't have any expertise, but... I think it would. A dissertation proving that cops on the road slow down traffic might be able to effect public policy. We might be able to get cops off the road during rush hour! We might realize that the benefits of tracking down speeding drivers don't outweight the benefits of having a copless road.