Colorado police looking for an armed bank robber stopped every car at a traffic light and handcuffed every adult earlier this week.

According to reports, each innocent motorist was held for about two hours in Aurora. Police were responding to a tip that the person who robbed a nearby bank was at that red light. The cops had no description of the suspect.

Officers asked for permission to search each vehicle after handcuffing about 40 adults. In the very last car, they found the robber, who had two firearms.