Given the information in the article, you can't verify any of the traffic or actions that were supposed to break policy. After all Google wrote, "We understand that you may want to know more about the issues that we’ve detected. Because this information could be used to circumvent our proprietary detection system, we’re unable to provide our publishers with information about specific account activity."
"We understand that you may want to know more about the crimes that we’ve detected. Because this information could be used to circumvent our proprietary policing system, we’re unable to provide defendants with information about alleged criminal activity."
You’d think there would be examples of people doing this, but so far I haven’t heard of them.