In the fourth in a series of five articles looking at the big debates in police use of facial recognition (FR), extracted from this year’s ‘Facing the future: The rise of facial recognition in policing’ report, Policing Insight’s James Sweetland explores the crucial issue of privacy and intrusion – which goes to the very heart of the FR debate – and looks at the absence of legislation around FR, with much of the early oversight coming from privacy regulators.