PC Rawani and his colleague PC Gran were called out in August 2016 through an "anonymous tip-off" to investigate whether Robert Preston had been driving under the influence of alcohol. Taking particular interest in the proceedings were Craig Tinker, who had just returned from attending a Special Constable Information Day, and Nick Tilsley, who reported Robert for the alleged offence. After failing a roadside breathalyser test outside Nick's Bistro in Viaduct Street, Robert was arrested and taken to Weatherfield Police Station where he was issued with a fine and a twelve-month driving ban.