A Two-Tier ACS Would Solve the Security Industry’s Problems – Why Won’t the SIA Implement It? In my conversations with clients, the Metropolitan Police and SO19, people are often shocked to learn that there is no mandatory regulation of security companies. Many believe – rightfully so – that the Security Industry Authority (SIA) governs the industry from top to bottom, when, in reality, it only governs around 20% of it. That’s right: the organisation that we all depend on to […]