1 For each of the individual years between 2010 and 2016:
a The average rate of promotion (i.e. the time has taken to promote to the next grade) from
- CPO to Main Grade officer
- Main grade officer to Senior officer
- Senior Officer to Head of Unit
- Head of Unit to Head of Function
b The percentage chance of promotion at each grade.
c How many vacancies there were available in each grade.
d How many of those promotions were internal to the NIPS.
NIPS FOI 16 253 promotions and vacancies prison staff