Authorities say Lakeland Police Officer William Long turned himself in Friday evening.
The Lakeland Police Department said in a statement that the agency opened an investigation after receiving a complaint about Long related to a report he had made to the Florida Department of Children and Families abuse hotline.
Long said he had concerns about his child in the care of a babysitter hired by the child's mother after seeing unexplained scratches and a puncture wound.
A DCF investigator found no signs of abuse.
No online court records had been posted Saturday, so it was unknown if Long had an attorney.
Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.