If you can't send all the criminals to prison, bring the prison to the criminals.
The NYPD has installed a patrol tower in a Harlem neighborhood in an effort to cut crime in the high-risk neighborhood.
The two-story booth tower, called Sky Watch, gives the officer sitting inside a better vantage point from which to monitor the area. Officers in the booth have access to a spotlight, sensors, and four cameras. The tower is portable and can be moved to the areas that need it most.
A little more money for razor wire and they'll be all set.