The Home Secretary is "on the precipice of destroying a police service that is admired and replicated throughout the world", rank-and-file officers said today.
Theresa May's reforms, some of the most radical changes in more than 30 years, will fundamentally change the dynamics of policing, the Police Federation said.
The warning comes as Mrs May prepares to address the federation's annual conference in Bournemouth, less than a week after 30,000 officers marched through London to protest against changes to pay, terms and conditions.
Home Secretary Theresa May was heckled and booed by police officers calling for her to resign at the Police Federation conference.
The Home Secretary was heckled as she said changes to pay and conditions should be welcomed by hard-working police officers.