Working time for security officers: the exception is not an exemption

Twelve-hour shifts, four on four off, and cover picked up at short notice when somebody calls in. That is how most guarding contracts run, and it sits closer to the edges of the Working Time Regulations than the industry generally admits.

The complicating factor is that gov.uk names security and surveillance among the jobs where a worker may have to work more than 48 hours a week on average. That sentence gets read as an exemption. It is not one.

The baseline, before any special case

• –48 hours a week on average, normally averaged over 17 weeks. A worker can opt out of this individually, in writing.
• –One uninterrupted 20-minute rest break where the working day is longer than six hours.
• –11 hours of rest between working days.
• –Weekly rest: an uninterrupted 24 hours, or 48 hours a fortnight.
• –Under 18s: no more than 8 hours a day or 40 hours a week, and they cannot opt out.

The 17-week average is the number that makes a four-on-four-off pattern work on paper and the number that quietly stops working when somebody covers three extra shifts in a month. An average is only a defence if somebody is calculating it.

What the special case actually gives you

Where a job requires round-the-clock staffing, or falls into the listed categories, the limit can be exceeded — but the entitlement does not vanish. It converts into compensatory rest, which has to be given.

So an officer who cannot take a 20-minute break away from a post because the post cannot be left is not an officer whose break has disappeared. They are an officer who is owed an equivalent period of rest, and a roster that never finds one is not relying on the special case, it is simply not complying.

That distinction is almost entirely a records distinction. The same roster can be lawful or not depending on whether the compensatory rest was identified, given and written down.

Night work, which most guarding contracts involve

A night worker is someone who regularly works at least three hours during the night period. The night period is 11pm to 6am unless the worker and employer agree a different one in writing — and an agreed period must be seven hours and include midnight to 5am.

Being a night worker brings its own limits and a health assessment entitlement. For a contractor running mixed rosters, the practical difficulty is that the status is determined by the pattern rather than by the contract, so a day officer who covers nights for two months has become one without anybody deciding it.

Where this meets the rest of the operation

Two places, both already problems for other reasons.

• –Covering a call-in is the moment the average moves, and it is the moment nobody is looking at a seventeen-week figure.
• –Lone working and break entitlement interact badly: a single-officer post is the one where the break is hardest to give and easiest to quietly skip.
• –An officer close to their SIA licence expiry who is also close to the 48-hour average is a scheduling problem twice over, and most systems only watch one of the two.

What to be able to show

• –A rolling 17-week average per officer, not a monthly total.
• –Signed opt-outs where they exist, with the date, and a record of any withdrawal.
• –Where a break could not be taken, what compensatory rest was given and when.
• –Which officers are night workers on the pattern they are actually working, and that the health assessment was offered.
• –The agreed night period in writing, if you use one other than 11pm to 6am.
• –Under-18 workers flagged separately, because none of the flexibility applies to them.

None of this is exotic. It is the ordinary consequence of running a 24-hour service with people, and the reason it goes wrong is that the roster is built for coverage and the compliance is checked, if at all, afterwards.

Confirm the current limits, the special-case categories and the compensatory rest position against the gov.uk pages and the Regulations below before relying on any of it for a specific roster.