NEW YORK (CBSNewYork/AP) — New York City Comptroller John Liu says a contractor hired by the city to overhaul its 911 system may have received as much as $163 million in unjustified payments.

Liu announced Wednesday that he’s asked prosecutors to investigate whether there was any criminal fraud associated with the contract with Hewlett-Packard Co.

1010 WINS’ Stan Brooks Reports

Auditors in Liu’s office found what they said were instances of questionable billing by the contractor, and they’re accusing the city of mismanaging the project.

City Hall officials are disputing the report, saying they carefully oversaw the contractor’s work and saved time and money by demanding improvements from the contractor rather than seeking a replacement.

A spokesman for Hewlett-Packard didn’t return a call seeking comment. The Manhattan District Attorney’s office declined to comment.

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