That's unlikely. When Ukraine was run by a Russian puppet Putin had no problem with whatever illegal activity might have been happening. He could have easily stopped it then.
Even now if Putin cared about child sex trafficking or money laundering he would address those crimes in his country and the surrounding countries, not invade a neighboring country.
“When Ukraine was run by a Russian puppet Putin had no problem with whatever illegal activity might have been happening.”
Was it happening before or after the puppet was removed?