-OaklandNorth, October 26, 2011 by Tasion Kwamilele
http://oaklandnorth.net/2011/10/26/crime-expert-frank-zimring-suggests-oakland-adopt-new-yorks-crime-reduction-techniques/
Zimring said that the city’s expansion of its police presence and policing resources forced the crime rate down, and the productivity of the department increased substantially. The NYPD “went from being one of the softest to one of the most aggressive” police departments, he said.
-San Francisco Chronicle, October 30, 2011 by Franklin E. Zimring
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/10/30/INFK1LMB5J.DTL
The epic success of police in New York came at a time when the number of cops increased, their strategies of enforcement changed, and street police became much more aggressive.