Yeah, I can understand the motive to reduce massive budgets of some police departments that spend enormous sums on second hand military equipment - that actually makes a lot of sense.
Militarizing the police is something I've heard has been taking place in the US. I don't really know the circumstances in which this has happened. But it seems strange as a police force exists to solve crimes first and foremost. All other roles it has can be performed by organizations like the National Guard in case of large-scale riots and private security firms when it comes to guarding private or public spaces. Investigating crime is a core task that cannot be outsourced to any other organization.