Just did an overnight (6ish hour) count and was right around 60 criminals (which is what people were reporting in phase 1)...the rainbow haired criminals tend to wander further off the roads (squidport, mansion backyards, park areas) and even though it felt like fewer taps to clear my town some of that was learning that tapping nearer to the ground would clear the buildings (& my confusing characters like Father Sean, Legs etc were all tasked indoors & the increased tap radius meant I was getting two at once
Still running 4.13.0 (in case anyone has a decline and a different app version) & am right around 9200 pies after one day.