Nationwide and in New York, line-of-duty deaths have been on the decline since 1970 through Republican and Democratic administrations. Indeed, they've fallen during the Obama years.
http://articles.latimes.com/2013/dec/30/nation/la-na-nn-police-deaths-20131230
http://usnews.nbcnews.com/_news/2012/12/27/16196680-police-deaths-down-23-percent-this-year-across-us
Racism on Trial: The Chicano Fight for Justice
By Ian F. Haney López
First Harvard University Press, 2004
https://books.google.com/books?id=PHK3XEikm5kC
Racism flourished no doubt partly because Chief [Bill] Parker [of the LAPD] himself was a bigot. Parker routinely sought to parlay white fears of minorities into support for the police department. He usually did so using coded language, for instance by constantly proclaiming that the LAPD was the "thin blue line" between "civilization" and "chaos." But at other times, Parker made his racial meaning abundantly clear. In 1965 Parker warned a television reporter "that by 1970, 45 percent of the metropolitan area
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of Los Angeles will be Negro. If you want any protection for your home and family, you're going to have to get in and support a strong police department. If you don't do that, come 1970, God help you!" (18) Parker also expressed racist views about Mexicans. In 1960, in testimony regarding police-minority relations delivered before a from the U.S. Commission on Civil Rights, Chief Parker offered this revealing appraisal: "The Latin population that came here in great strength were here before us, and presented a great problem because I worked over on the East Side when men had to work in pairs ... and it's because of some of these people being not too far removed from the wild tribes of the inner mountains of Mexico. I don't think you can throw the genes out of the question when you discuss behavior patterns of people."
