Heather MacDonald has this article with the above title in the WSJ.  We already know the California method for increasing crime -- ram a flaky, untested idea through the Legislature in a single day and then test it on 38 million people to see if it works.  MacDonald, though, is worried about a New York development that she anticipates might spread nationwide.  Instead of trying a new program that probably will not work, tear down an existing one that has proven effective in reducing crime.

A racial-profiling lawsuit over the New York Police Department's "stop, question and frisk" policies is now in the hands of a judge whose decision is expected within weeks. Many New Yorkers watched the two-and-a-half-month trial nervously, concerned that a ruling against the NYPD by U.S. District Court Judge Shira Scheindlin could spell an end to a police practice that helped the city achieve an astonishing drop in violent crime.

But non-New Yorkers would do well to worry about the case too. A decision against the NYPD would almost certainly inspire similar suits by social-justice organizations against police departments elsewhere. The national trend of declining crime could hang in the balance. And the primary victims of such a reversal would be the inner-city minorities whose safety seems not to figure into attempts to undermine successful police tactics.

See also prior posts of March 28, Feb. 13, Jan. 24, and another Jan. 24.