PHILADELPHIA (CBS) – A departmental audit of data from 2006 to 2009 shows that the Philadelphia Police Department poorly supervised its payroll, which led to overtime abuse.

Allegedly, officers put their own time into the payroll system without approval from a supervisory.

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It was found by auditors that officers reported to have worked overtime 13 out of 16 times.

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Officials say that some of these issues have been corrected since 2009 when Commissioner Charles Ramsey created an overtime management unit.

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