When do temporary workers need a DBS check?

Whether a worker needs a DBS check, and at what level (basic, standard, or enhanced), depends on the nature of the role itself — work with children or vulnerable adults, certain regulated professions, some financial or security-sensitive positions — not on whether they're being placed on a temporary or permanent basis.

A common and risky assumption is that a short-term or temporary placement somehow reduces the requirement. It doesn't — if a role requires an enhanced check for a permanent hire, it requires the same check for someone filling that role for two weeks through an agency.

The three levels, in plain terms

• –Basic — a check of unspent convictions, available for most roles regardless of sector
• –Standard — includes spent and unspent convictions, cautions, reprimands and warnings, generally for roles with a defined legal requirement such as certain regulated professions
• –Enhanced — adds local police information and, where relevant, checks against the barred lists, generally for roles involving children or vulnerable adults

The current, definitive detail on which roles qualify for which level sits with gov.uk and the Disclosure and Barring Service directly — role eligibility for a given check level is specific and periodically updated, so it's worth confirming against a live role rather than relying on a general sense of what "usually" applies.

One-off assignments vs recurring supply to the same hirer

A worker taking a single short assignment in a role requiring an enhanced check still needs that check completed before they start — there's no de minimis exception for a placement lasting a few days. Where the same worker is supplied to the same hirer repeatedly, or moves between similar roles for the same client, it's worth checking whether an existing DBS check is still current and applicable to the new placement, rather than assuming a fresh check is automatically required every time, or — the riskier error — assuming an old check still covers a materially different role.

What goes wrong at scale

Where agencies place workers across a range of role types, the practical risk is treating DBS requirements as a manual judgement call made fresh each time, rather than a defined rule tied to the role itself — a rule that's far easier to apply consistently if it's built into a standard placement checklist than left to individual consultant discretion under time pressure. The failure mode isn't usually a consultant deliberately skipping a check; it's a consultant new to a particular role type not realising the level required, or assuming a lower-risk-sounding job title doesn't need one when the actual duties say otherwise.

Common mistakes

• –Assuming a temporary or short-term placement reduces the DBS requirement for a role.
• –Judging the required level from a job title rather than the actual duties involved.
• –Reusing an old DBS check for a materially different role at the same hirer without confirming it's still applicable.
• –Placing a worker pending a DBS result under pressure to fill a role quickly, rather than waiting for it to clear.

Consultants moving between sectors — say, a desk that mostly places commercial and industrial roles occasionally covering a healthcare or education vacancy — are where this trips up most often, simply because the DBS requirement isn't a habit for that particular desk the way it is for a specialist team. Building a simple, role-linked reference that flags the requirement automatically removes the reliance on a consultant's memory of a rule they rarely have to apply.

Getting the level wrong in either direction

Under-checking is the obvious risk — placing someone in a role requiring an enhanced check with nothing more than a basic one, or nothing at all. Over-checking has its own cost, though it's less discussed: requesting an enhanced check for a role that only actually requires basic or standard creates unnecessary delay, unnecessary cost, and can raise a fair question from the worker about why a more invasive check than the role justifies is being requested of them. Getting the level right, specifically, rather than defaulting to whichever level feels safest, is worth the extra minute of checking against current DBS eligibility guidance.

The DBS Update Service and portability

Where a worker is registered with the DBS Update Service and their existing certificate is at the right level for a new role, it may be possible to rely on that certificate rather than requesting a brand-new check — but this depends on the certificate being genuinely current and applicable to the new role's specific requirements, which is a judgement worth making deliberately rather than assuming. Agencies placing the same pool of workers into similar roles across multiple hirers repeatedly can save real time here, provided the process for confirming portability is actually followed rather than skipped because a worker "already has a DBS" in some general sense.

What to do while a check is pending

The honest position for a role that legally requires a completed DBS check before someone starts is that the worker doesn't start until it clears — there's no safe halfway measure for regulated activity involving children or vulnerable adults specifically. For roles where the requirement is a matter of the hirer's own policy rather than a strict legal precondition, there may be more flexibility, but that's a decision to make explicitly with the hirer's knowledge, not a gap the agency quietly papers over under time pressure. Being honest with a hirer that a start date needs to move because a check hasn't cleared is a far better conversation than the one that follows if a placement without a required check comes to light later.