Daku sneak across the city to the bank. Police set the trap.
A map of streets and junctions with the bank at the end.
Daku move up to 2 streets a turn. Police only see them when they come close, trip the bank alarm, or the informant talks.
Police move 1 street (no standing still twice) and can drop a hidden checkpoint next to them.
Run into an officer, cross a checkpoint or swap streets with the police and that Daku is out.
One Daku inside the bank wins it for the gang. Police win by catching them all or running out the clock.