As a society, we are captivated by policing; we watch police procedurals and fly-on-the-wall documentaries and absorb the headlines on the rolling news. Yet how much do we really know about the world that policing inhabits and reveals? In his deeply revealing new book, John Sutherland invites us to step behind the cordon tape and bear witness to the things that he has seen in his twenty-five years of service with the Metropolitan Police. Tackling ten of the biggest challenges facing society today - from alcohol abuse, drug addiction and domestic violence to knife crime, terrorism and sexual offences - we are introduced to people who have been pushed to the limits and beyond. In doing so, we gain a clearer sense of what needs to be done to make our neighbourhoods safer and to transform the lives of those we live alongside. Eye-opening, courageous and moving, CROSSING THE LINE is a book that will change the way you see the world around you.