As the investigation into Bradley Balzan's death continues, serious questions are raised about how the country’s largest police force uses its search powers.

A 20-year-old is chased by four plain-clothes police officers into his western Sydney backyard. But he hasn't committed a crime. He hasn't even done anything wrong. He's shot twice, and then dies. In a special miniseries by Background Briefing, the final moments that led to this tragic incident...