Posted Sunday, April 22, 2012 --- 7:10 a.m.

MILWAUKEE (AP) — The Milwaukee police department's internal affairs is investigating a report of excessive force after an officer was seen on video punching a drunken driving suspect who was lying face down.

The Milwaukee Journal Sentinel reports (http://bit.ly/JsN8r6) police had cleared the 42-year-old officer, Eric Ratzmann, of wrongdoing in the April 12 incident.

But Police Chief Edward Flynn says internal affairs is re-investigating because officials recently realized the suspect, Jeffrey Strasser, complained of excessive force that night.

According to court records, Ratzmann had his police powers temporarily suspended two years ago due to mental health issues, and his ex-wife has twice sought domestic violence restraining orders against him.

Flynn declined to discuss Ratzmann's previous issues at Friday's news conference, only saying you can find something bad about anyone if you dig enough.

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Information from: Milwaukee Journal Sentinel, http://www.jsonline.com

Copyright 2012 The Associated Press.