Between the cities of Inferno and Slough, Gary had been taken in by the White Rose members. More specifically, the ones who had brought them in were part of Kanu's squad, and by his side were Frank and Sadie. There was the driver up front but he was just a normal officer.
Since this raid on Gary was between the regular police force and the White Rose.
They were all in a large van, with the three of them up front and Gary on his own in the back, wearing special cuffs designed for Altered individuals. Although they weren't entirely sure if these cuffs would work effectively on Gary, as some Altereds were simply too powerful to be contained.
Regardless, even if he tried to escape, there were several cars escorting them out of the area, filled with other White Rose members.
To them, they had managed to capture a relatively strong Altered, and in such cases, it was common for the Altered individual to attempt an escape.