Between 2012 and 2016 a total of 7,387 prison officers have left but only 2,497 have joined. That's a shortfall of 3,066 officers.
Leavers and joiners of operational prison staff between 2012 and 2016
Leavers
Joiners
0
2,000
4,000
6,000
Senior managers
Managers
Custodial managers
Supervising officer
Prison officer
Operational support