CARMEL, Ind. -- DNA testing is underway in Carmel – to determine who hasn't been picking up after their dogs.

At Carmel's Bark Park, they take cleanliness seriously. So seriously, in fact, they've hired PooPrints for a forensic investigation into who's been disobeying park rules.

"We work really hard to keep the turf at a high quality," said Carmel Parks & Recreation Maintenance Director Michael Allen. "We irrigate this area and do a lot to maintain it, so we're trying to have the best bark park around."

Allen said an increase in dog waste left behind lately has forced the parks department into action.

"The dog park is membership-based, and when you sign up to be a member, you submit your dog to be DNA tested, so we put the dogs' DNA on file," Allen said.

Now that DNA is being used to find the culprits leaving behind dog waste at the park.