Confirming continued work authorization before a document or status reaches its expiry. It’s a legal requirement in some cases and a useful control design in many more.
Identity Solutions|
3 min. read |
10/13/2026
Why Identity Checks Can’t Stop at Onboarding
Maureen Lally
Chief Marketing Officer, First Advantage
Key Takeaways
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What does a background check actually confirm?
A specific history (such as criminal history or work history) belongs to a specific person, or identity, on the day the check runs. It is a strong answer to that question and not designed to answer later ones. -
Why is contingent hiring exposed here?
Workers are met once or not at all, sites run at volume, and checks are usually front-loaded. The link between the verified person and the working person is held by process alone. -
What closes the gap?
An owner, a trigger list, and a habit of re-checking that the systems are still doing what they were set up to do.
Background screening answers a specific question well. It tells an employer that a named person carries a particular history, at the day the check runs. In workforces where people meet once, or never meet at all, a second question arrives immediately behind it and often finds nobody waiting to answer it. Is the person doing the work still the person who was checked? This piece draws on a conversation from the Know Your People podcast featuring Erin Schroeder, who spent seventeen years in staffing and contingent workforce.
Where the gap opens
Front-loading is the norm for good operational reasons. Staffing and BPO companies build pools of workers before client needs land, so checks run early and are rarely repeated. Trust forms in a single meeting and is seldom revisited afterwards. At a client site running hundreds of temporary workers, nobody expects to recognize a face. Each of those is sensible on its own, and together they leave the identity link unattended.
The case that shows it
In one case Erin describes, two sisters shared a single work authorization between them. One completed her I-9 and came back employment authorized. She attended the client site on day one and showed ID for access. From day two, her sister worked in her place, while she took a job through a different agency entirely. The screening was correct throughout. There was no step in the process designed to confirm who kept turning up.
Seven Checks for High-Volume Hiring
Work the seven checks against your current process to help prepare for knowing who’s showing up.
Why re-verification is the useful habit
The substitution surfaced because an immigration status with a scheduled expiry triggered a re-verification, and a compliance specialist noticed that a claimed name change did not explain a mismatch in identifying numbers. The lesson generalizes past immigration status. Re-verification is simply the moment a program looks again, and programs that only look again when the law forces them to are relying on the law to be their control design.
Useful triggers to set in advance include document expiry, any status change, a change to a worker’s personal details, a return after a long break, and a move to a different client site or role.
Why this gets harder, not easier
Video interviews used to be an informal proof that a particular human was present, and that assumption is weakening. The point for program design is narrow, and it holds regardless of what the technology does next: identity moves from a one-time gate to something worth confirming across the working relationship. What automation should and shouldn’t decide is a subject of its own, and a later episode in this series takes it up.
Takeaway: A background check verifies the history at that point in time. Ongoing re-verification helps ensure the person working remains the person who was screened, but does your process define who’s responsible for this and how often?
Listen to Erin and Maureen on the full episode: Listen here
Get the Seven Checks for High-Volume Hiring checklist: Download now
Know your people™
Frequently Asked Questions
How often should identity be checked?
On defined triggers rather than a fixed calendar. Expiry, status change, updated personal details, long absence, or a move to a new site are the practical ones.
Does rechecking identity apply outside staffing?
Yes. Any workforce where people are hired at volume and rarely met in person carries the same gap between the verified person and the working person.
Table of Contents
About First Advantage
Along the candidate journey HR teams choose First Advantage for consistent screening, fast verifications, and support of compliance regulations.
- 200M screens annually
- 1B+ records in proprietary databases
- 200+ countries and territories
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Sources: First Advantage, Know Your People podcast conversation with Maureen Lally and Erin Schroeder
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