UK: Bedfordshire; Cambridgeshire; Hertfordshire; Avon and Somerset; South Wales.
Any police officer or staff member within the five forces who is not:
a) actively using a mindfulness app already, orb) receiving talking therapy currently.
All officers and staff in the five forces will be invited to take part in the trial. Those who volunteer will be randomly allocated to one of three groups (Headspace, Mindfit Cop or a waiting list). This study is a basic randomised design comparing two treatment groups (mindfulness training) to control.