The ones who discovered the stealthy release were two interns from the Conservation and Protection Bureau.
After they arrived, one of them pulled the person out of the water while the other quickly retrieved the bucket that had fallen into the river.
Most of the fish from the bucket had escaped, but one was left behind—a very obvious piece of evidence.
"A koi carp?"
"Haven't you seen the city's publicity? You're not allowed to release koi carp!"
Recently, in response to the issue of releasing animals, authoritative media had carried out publicity campaigns both online and offline, using common examples of animals that were not to be released, including koi carp.
Koi carp and red carp are both carps, but they are different nonetheless.
Red carp are native species, and koi are artificially bred hybrid variants.