Between the years of 1984 to 2004, Prince George's had a 62.8% increase in total crime.
Since then performance has continued to improve with a 20% reduction in total recorded crime (to March 2009).
A 2010 study found that 5% of city blocks contributed to over one-quarter of the District's total crime.
Overall, since 1995 there has been a reduction in total crime.
That measure does not show the total crime, only the incidents reported to the police.
Aggravated assault accounted for 984 of the total violent crimes.
In many precincts where total crime was down, certain categories of crime increased.
Of the two murders in the novel, the "total crime" easily commands the most attention.
Within five years, murders had dropped 64.3 per cent to 770 and total crimes had fallen by almost half to 355,893.
From 1987 to 1988, total crimes increased by 1.3 percent, from 35.3 million to 35.8 million, the department said.