CHICAGO (CBS) — There’s a new allegation that Chicago police engage in their own “code of silence” to protect each other from charges of wrongdoing.

Bartender Jennifer Cafferata his filed a $2 million lawsuit against the City of Chicago, WBBM Newsradio’s Bernie Tafoya reports.

Cafferata claims a police sergeant tried to intimidate her and convince her not to file charges against an off-duty Chicago police officer, who allegedly threw a full bottle of beer at her after she refused to give him any more drinks.

Cafferata contends she cut off the officer last May because he was bothering another customer at Tommy’s, a bar in the Jefferson Park neighborhood.

The bartender has also filed a complaint with the Independent Police Review Authority.

The city is not commenting on the lawsuit.

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