The short answer: what detached duty is

In shortDetached duty means working at a different prison for operational reasons while your contract and pay stay at home, and HMPPS publishes no policy detailing how it works.

The Pay Review Body's 2026 report defines detached duty simply: prison officers work at a different prison to their home prison for operational reasons. Your contract and pay stay with your home establishment, but for a period you are deployed to another one, which is typically short of staff.

HMPPS's 2025 evidence to the Pay Review Body describes 'frontloading', recruiting above required staffing levels in certain prisons or regions to give system-wide resilience through national detached duty, as standard practice.

The public definition and what is missing

Public definition

  • Working at a different prison to your home prison for operational reasons
  • Contract and pay stay with the home establishment

Not published

  • No HMPPS detached duty policy framework that we could find
  • Selection, length, rotation, travel, accommodation and payment come from secondary sources: Pay Review Body evidence, POA circulars and written ministerial answers
  • Those sources are dated, and in places disagree, so we give dates for everything

On the receiving end

Find out in writing which kind of deployment it is. A move within your region may be a local arrangement under local rules, while a 'national' deployment, as the POA defines it, brings different entitlements.

The rest of this guide helps you ask the right questions. For how a move to another prison works as a permanent change, see our transfers guide.

Why detached duty exists and how much it is used

In shortDetached duty exists because of staffing shortfalls, and how much it is used is contested between HMPPS and the POA.

  • Below target staffingAround 1,500Staff, per the Pay Review Body in March 2026

The Pay Review Body noted in March 2026 that HMPPS 'relies on costly detached duty to ensure that certain establishments are able to function'. HMPPS's own evidence says a stability measure for each prison considers its detached duty provision, and that frontloading uses national detached duty to deploy staff from one prison to another.

  • Staffing remains a particular challenge in the long-term high security estate, which HMPPS attributes to candidates not meeting residency requirements for Counter Terrorist Checks, poor transport links to rural locations and reporting of high-profile assaults.
  • HMPPS data on numbers was not in the sources we could open, and press figures that circulate are secondary, so we do not quote them.

How much it is used is contested

HMPPS

  • Told the PSPRB there had been a small increase in the number of staff on detached duty, much of it due to the closure of HMP Dartmoor

The POA

  • HMPPS has relied heavily on detached duty since 2013
  • It is now an increasingly common response to chronic staffing issues rather than the short-term operational measure it was meant to be
  • It believes Payment Plus is being used by establishments to cover for staff sent on detached duty

What 'national' detached duty means: the 75-minute rule

In shortThe POA defines national detached duty as more than a 75-minute drive, or 90 minutes within London, to the site.

The POA's National Chair update of November 2022 states: 'National detached duty is classed as travelling more than a 75-minute drive or 90 minutes within London to get to the Detached duty site.' That is the clearest published definition we found.

It implies that detached duty within those travel times is treated differently, as a local or regional arrangement, with different expectations.

  • POA members who volunteer for national detached duty serve as Band 3 prison officers and cannot be compelled to work at higher pay grades, even if asked.
  • Receiving establishments must provide a full induction including site familiarisation, incident procedures, radio information, health and safety documentation and a liaison officer for welfare support.

A practical test

  • If asked to work at another prison, ask for the journey time from your home, and from your home prison, to the site
  • Whether it is local, regional or national in the POA's sense changes what you can expect, and the answer should be in writing
  • Our commute cost calculator lets you compare the cost of the journey with and without any payments you are offered
Free toolCommute cost calculatorCompare the real cost of a longer journey, or a temporary one, in time and money before you agree to it.Open the free commute cost calculator

Can detached duty be compulsory?

In shortWe cannot tell you whether detached duty is compulsory today: two dated POA statements disagree and we found no later circular.

The honest answer is that the published sources have changed and disagree. Those are two dated statements from the same union, four months apart, about HMPPS guidance. We have not seen the HMPPS guidance itself.

What the POA said

  1. November 2022Members cannot be forced

    The POA's circular said members cannot be forced to undertake national detached duty, though regional transfers within the distance limits may occur and individual circumstances are considered.

  2. March 2023Forced attendance for 14 days

    The POA National Chair wrote that HMPPS would 'force Band 3 Prison Officers to attend detached duty sites for a 14-day period' if there were insufficient volunteers, that the National Executive was 'vehemently opposed to forced detached duty', and that the POA had been consulted on the operational guidance for compelling it but had not agreed it.

  3. As at 2026No later circular found

    A requirement to attend, and the notice and exemptions around it, are set by current HMPPS guidance and your local rules; the POA is the right first call if you are told you must go.

What the dated sources say about compulsion (as published by the POA)
Source and dateWhat it saysWhat it does not tell us
POA CIRC 099, November 2022Members cannot be forced to undertake national detached duty; regional transfers within distance limits may occurWhat HMPPS's current rule is
POA CIRC 023, March 2023HMPPS will force Band 3 officers to attend for 14 days if volunteers are insufficient; POA opposes and did not agree the guidanceWhether it is applied now, and notice or exemptions
PSPRB 25th Report, March 2026Does not address compulsion; notes cost, reliance and POA concernAny rule of selection

These are union statements, not the HMPPS guidance. Check the current position with HR and your POA branch.

Pay, bonus and costs: what is and is not published

In shortThe only hard number is a cost to the service of about £942 a week; what the officer receives, including any bonus, is not published.

  • Assumed average costAbout £942 a weekHMPPS estimate, per the Pay Review Body; costs vary
  • At 52 weeks of detached duty£48,984Over 52 weeks: a cost to the service, not an amount an officer receives

That cost will include travel, accommodation and other costs as well as any payments to the individual. It is an estimate, not an entitlement.

Detached duty bonus (POA circular, September 2023)
Officers who do not complete their full detached duty period because of sickness are not entitled to the full bonus unless they complete the hours on return. If an officer is assaulted at work and granted a sick leave excusal they may keep contributing on the basis of the mean average of detached duty hours worked in the preceding 13 weeks. The proposal moved towards pro rata bonus payments commensurate with the weeks completed. The circular as we read it gives no bonus amounts, so we cannot tell you what is paid.
Travel, subsistence and accommodation
We did not find published rules on travel and subsistence for detached duty, accommodation or how the time travelling is treated for pay and TOIL.
Tax
Reimbursements and allowances can be taxable or not depending on what they are; payroll and HMRC are the sources, not rumour.

Life on detached duty: what to ask for before you go

In shortBecause the published rules are thin, get every term in writing before you agree to a deployment.

Before you agree, or are sent, get the terms in writing: where, for how long, how many shifts a week, which hours, which role and pay band, and what is paid for travel and accommodation. Ask how your roster at the receiving prison will work and whether your contract hours and leave are unaffected.

  1. Ask in writing: location, start and end dates, shift pattern, role, and who you report to.
  2. Ask for the journey time from home so you know whether it counts as national detached duty (more than a 75-minute drive, or 90 minutes within London, per the POA).
  3. Ask what travel, accommodation and bonus payments apply, how they are taxed and when they are paid.
  4. Ask how sickness or injury during the deployment affects any bonus (POA circular, September 2023).
  5. Ask who your liaison officer is and what induction you will receive.
  6. Ask how your leave, TOIL and Payment Plus are handled while away.
  7. Contact your POA branch before you agree if you have concerns, and keep copies of everything.

What detached duty means for your home prison and your career

In shortReliance on detached duty leaves empty posts behind and has no published link to promotion or transfers; HMPPS and the unions both want it reduced.

From the viewpoint of those who stay behind, detached duty can mean empty posts and Payment Plus or TOIL cover. For you, that means the likelihood of being asked to go, or of covering for those who have, depends on how a prison is staffed.

Two viewpoints

The home prison

  • The POA's evidence says the reliance has detrimental effects on establishments
  • The Pay Review Body said it hopes better retention will help the service in its aim of reducing reliance on Payment Plus, overtime, detached duty, temporary promotion and a large time off in lieu liability

Your career

  • Working at other prisons can broaden experience
  • There is no published evidence that detached duty counts towards promotion or transfers
  • If you want to move permanently, the Prison Officer Level Transfer scheme is the route HMPPS has published for Band 3 officers, covered in our transfers guide
  • For a different career altogether, see our leaving the service guide

Scotland, Northern Ireland and private prisons

In shortThis guide concerns HMPPS in England and Wales; the Scottish policy is an emergency-response one, and nothing was found for Northern Ireland or private operators.

Scotland
The Scottish Prison Service publishes an Exceptional Duty Payments policy (version HR0021/v001, effective 15 September 2017, with a review date of 15 September 2020) covering payments to staff who respond to an 'exigency of the service' or a level 3 incident, including national deployment. It is an emergency-response policy and is not the same thing as routine detached duty, and it is dated, so check the current SPS version.
Northern Ireland
We found no published detached duty policy for the Northern Ireland Prison Service.
Private prisons
We found no verified information on private prison operators, who employ their own staff on their own terms rather than HMPPS ones. If you work for a private operator, check your contract and your employer's policies on working at other sites.

Frequently asked questions

What is detached duty for prison officers?

Detached duty is where prison officers work at a different prison from their home prison for operational reasons, normally to cover staff shortages. The Pay Review Body defines it that way and says HMPPS estimates an assumed average cost of around £942 a week per person. Your home prison remains your base.

Can prison officers be forced to go on detached duty?

The sources disagree. A POA circular in November 2022 said members cannot be forced to do national detached duty; another in March 2023 said HMPPS would force Band 3 officers to attend for 14 days if volunteers were insufficient, which the POA opposed.

We found nothing newer, so check the current position with HR and the POA.

How far is national detached duty?

The POA's November 2022 circular classed national detached duty as travelling more than a 75-minute drive, or 90 minutes within London, to get to the detached duty site. That is a union definition, not an HMPPS policy text. Ask HR how your deployment is classified.

Do you get paid extra for detached duty?

A bonus scheme for national detached duty exists, with rules for sickness and pro rata payment set out in a September 2023 POA circular, but we found no published amounts. Travel, accommodation and other payments are not documented in public sources we could open. Get terms in writing and check your payslip.

How much does detached duty cost HMPPS?

The Pay Review Body's 2026 report says HMPPS estimates an assumed average cost of around £942 a week for a member of staff on detached duty. That is a cost to the service covering all associated costs, not what an officer is paid. Actual costs vary.

Is detached duty the same as transferring prisons?

No. Detached duty is temporary and your home prison does not change. A transfer changes your employing establishment. HMPPS has run a voluntary Prison Officer Level Transfer scheme for Band 3 officers, and a National First Deployment Scheme for new recruits willing to relocate for their first 23 months.

Who can help if I am asked to go on detached duty?

Your line manager and HR for the terms, and your POA representative for advice on your rights and the union's position. Raise any caring or health reasons early and in writing. For legal questions, such as equality duties, take independent legal advice.

Sources