YPSILANTI, Mich. - Police in Ypsilanti, Michigan say the individual defecating on their local playgrounds may still be out there.
In a news release Wednesday, police indicated they have only spoken to a person of interest and no suspects have been taken into custody, arrested or charged with a crime, sister-station WXYZ reported.
"There is not enough substantiated information to conclude that this subject has done anything wrong," police said in the release.
For the past six months someone has been soiling slides at an Ypsilanti playground, prompting city officials start searching for the so-called mystery pooper.
"We have a problem in Prospect Park with a miscreant that does not understand the difference between a children's playground slide and a toilet," the Police Chief Tony DeGiusti said previously.
"This winter, it wasn't necessarily a problem," said city council member Pete Murdock. "Now that the weather is getting warmer, we need to get a handle on it."
Murdock said the "well-used" park, which sits near a school and features a basketball court, a tennis court being used as a skateboarding venue as well as a picnic area, needs to be protected.
"No one wants to play in other people's feces," he said.
Since then, a local ad agency erected a punny billboard along Insterstate 94 displaying messages such as "Help us catch the poopetrator," and "Do your civic doody, report the pooper." They are all accompanied by the Twitter hashtag #YpsiPooper.
Todd McWilliams, the General Manager at Adams Outdoor Advertising, said the hope was that by raising awareness they could pressure the "pooper" to stop.