CLEAN : Sydney cafe hostages face dangerous situation: security expert

The video discusses a situation involving an unmasked individual who has taken hostages and made a demand for a flag, which is not an ISIS flag. The police are working to understand his motives and ensure the hostages' safety. The strategy involves gathering full information before taking action, as the individual may not be linked to any terrorist group.

What strategy do the police seem to be employing in response to the situation?

What potential mistake is highlighted regarding the police's approach to the individual?