"There was no indication she was harmed or hurt in any way," Sheriff Mark Hackel said of the 13-year-old girl whose legal guardians are Eminem and his wife, Kim Mathers.
According to the Macomb County Sheriff's Office, Eminem went to the home after getting into an argument on the phone with his niece.
There, to get her attention, he tapped her on the side of the head, Hackel said.
Eminem said the two were arguing over the girl's "school clothing."
After he left the home, his niece described the incident to her grandmother, who called Mathers.
She called the police to file a domestic violence complaint, but the sheriff's and prosecutor's offices decided no charges were warranted.
Eminem, 33, filed for divorce in April, less than three months into his second marriage with Mathers, 31.
The case has been sent to a mediator. If it is not resolved, a trial is scheduled for Dec.
19.
A message left with Eminem's publicist's office on the matter was not returned.
