From the NY Post:
The NYPD solved 59 percent of homicides last year -- down 8 percentage points from the year before, and about 5 points less than the national average in 2008, according to data obtained under a Freedom of Information request.
The "clearance rate" -- cases where arrests are made -- plummeted despite detectives having to investigate a near-record low 471 slayings, police records show.
"All the cases on TV are solved with evidence," said Vernon Geberth, a famed detective and former commander of the Bronx homicide task force. "People start to think we can solve all these crimes."
The data came out during an alarming uptick in murders. There were 139 homicides so far this year as of April 18, a 27 percent jump over the 109 killings in the same period last year.
In 2009, cops solved 75 percent of rapes, 42 percent of robberies, 18 percent of burglaries and 25 percent of grand larcenies -- all higher than the national average the year before. About 54 percent of felony assaults were cleared; the national average in 2008 was 55 percent.
The easiest crime to get away with was car theft -- just 9 percent were solved in the city and only 12 percent nationally. And auto thieves are not slowing down. They swiped 2,869 vehicles in the Big Apple this year, up from 2,852 over the same period in 2009.
The NYPD closely guards its performance figures, unlike crime stats, which cops are required to turn over to the FBI.