I was a police officer for 23.5 years, 17 of those years as a sergeant. I was a custody sergeant for 7 years, then proceeded to design and deliver custody officer training which gained national recognition and awards. I was head of the Cumbria police specialist training team, which delivered all custody, use of force and first aid training. As an expert witness, I have been engaged in over 600 cases. My main areas of work include: • Deaths and injuries in police custody • Use of force • Drink/drug driving custody procedures • Ligature d...