A female police officer in Pennsylvania, Melissa Adamson, has  lost her job after she posted a Snapchat selfie showing herself in uniform — and using a racial slur.

The snap showed Melissa , a part-time cop in McKeesport, wearing a uniform and sunglasses in a car, with the caption, “I’m the law today n---a.”  Once her bosses got wind of the snapchat photo, they fired her and she also resigned from another part-time police officer job in Versailles.
She called the photo “a stupid mistake” — and insisted she’s not a racist.
“Everyone that knows me knows I don’t have a racist bone in my body,” she said 
“And people who don’t know me, I can understand why it was misconstrued to where it looks racist. But like I said, everyone who knows me knows I'm not racist. I don't want this to affect how I do my job.”
Melissa posted the photo on Facebook and that's how her superiors got to see the it.
“This post displays a degree of conduct and character that is far different from what I would expect from an officer in this city,” Mayor Michael Cherepko wrote in a Facebook post. 
It is absolutely unacceptable. Without hesitation, my office and the police chief's office immediately concluded that this officer's actions will not be tolerated in the City of McKeesport.”
Source; New York Daily News