HARRISBURG — A report released today detailing the handling of the Jerry Sandusky child molestation case faults police and prosecutors for long delays in bringing charges against the former Penn State assistant coach but found no evidence that politics affected the investigation.

The report, commissioned by Attorney General Kathleen Kane and written by former federal prosecutor Geoff Moulton, blamed a three-year lapse in filing charges on communication problems, an expungement of a 1998 complaint about Sandusky and a failure to take certain investigative steps early on.

“The facts show an inexcusable lack of urgency in charging and stopping a serial sexual predator,” said Kane, a Democrat who had vowed to conduct a review of the investigation while running for office. “The report documents that more investigative work took place in just one month in 2011 than in all of either 2009 or 2010.”

Then-Attorney General Tom Corbett, a Republican, was in the midst of his successful 2010 gubernatorial campaign during the Sandusky investigation.

Moulton said his review “revealed no direct evidence that electoral politics influenced any important decision made in the Sandusky investigation.”