Security officer dismissed for leaving post: unauthorised absences justified gross misconduct
A security officer with six years' service was fairly dismissed after CCTV footage showed he left his post without authorisation on multiple occasions. The tribunal rejected his unfair dismissal claim.
1 min read · Last updated 18 May 2026
Case details
Key facts
- The claimant was a security officer employed by the respondent from 3 February 2020 following a TUPE transfer.
- On 27 April 2022, the claimant's line manager reported that the claimant had been leaving the site during working hours without authorisation.
- The claimant admitted leaving the site during working hours at the investigation and disciplinary hearings.
- CCTV footage and sign-in/out logs confirmed the claimant's unauthorised absences on 17 and 24 April and 1 May 2022.
- The respondent summarily dismissed the claimant on 10 May 2022 for gross misconduct.
- The appeal was handled by the managing director via telephone without a face-to-face meeting.
Timeline
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Employment commenced
Claimant started work as a Security Officer with Vision Security Ltd.
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TUPE transfer
Claimant's employment transferred to the respondent.
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Complaint reported
Line manager Henry reported claimant's unauthorised absences to Area Manager Nigel Jones.
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Investigation meeting
Nigel Jones held an investigation meeting with the claimant, who admitted leaving site without authorisation. Claimant was suspended.
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Disciplinary hearing and dismissal
Kola Shodalubi held a disciplinary hearing and summarily dismissed the claimant for gross misconduct.
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Appeal lodged
Claimant appealed the dismissal in writing.
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Appeal initially closed
Miss Rann closed the appeal due to no response within extended time.
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Appeal reopened
After a telephone call, claimant submitted further appeal points.
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ACAS early conciliation started
Claimant contacted ACAS.
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Claim presented
Claimant presented ET1 claiming unfair and wrongful dismissal.
The legal issue
The tribunal had to decide whether the claimant was unfairly dismissed for misconduct and whether the respondent acted reasonably in treating the claimant's unauthorised absences as gross misconduct justifying summary dismissal.
The outcome
The tribunal dismissed the claimant's claims of unfair and wrongful dismissal.
Key reasons:
- The respondent genuinely believed the claimant had committed gross misconduct by leaving his post without authorisation.
- The investigation was reasonable: the claimant admitted the misconduct, and CCTV and sign-in/out logs corroborated the evidence.
- The decision to dismiss was within the range of reasonable responses for a security officer, given the importance of being present at all times.
- The appeal process, though conducted by telephone, was not procedurally flawed.
No compensation was awarded as the claims failed.
Lessons & takeaways
- Admitting misconduct at an investigation or disciplinary hearing can make it very difficult to later argue that the employer acted unreasonably.
- For roles where presence is critical, such as security, even short unauthorised absences can amount to gross misconduct.
- A telephone appeal is not automatically unfair if the employee has the opportunity to present their case fully.
- Employers should ensure that the disciplinary decision-maker is not the same person who investigated, but this is not always fatal if the process is otherwise fair.
This case shows that an employer can fairly dismiss an employee for gross misconduct when the facts are clear and the employee admits the behaviour. The claimant, a security officer, left his post without permission on three occasions, captured on CCTV and log records. He admitted this at the investigation and disciplinary hearing. The employer dismissed him summarily for gross misconduct.
What the employer did right
The respondent carried out a reasonable investigation: they gathered CCTV footage, sign-in/out logs, and held a meeting where the claimant could explain. The disciplinary hearing was conducted by a different person from the investigator, and the claimant was given the chance to respond. Although the appeal was handled by telephone rather than face-to-face, the tribunal found this did not make the process unfair, as the claimant was able to present his points.
What the claimant could have done differently
The claimant's admission of the misconduct was the key factor. Once he admitted leaving his post without authorisation, the employer had a strong basis for dismissal. If he had disputed the facts or provided a legitimate reason, the outcome might have been different. The tribunal noted that the claimant did not raise any procedural issues that would have made the dismissal unfair.
Why this matters
This decision reinforces that for roles where attendance is critical, such as security, unauthorised absence can be treated as gross misconduct. Employers are not required to give a final written warning if the conduct is serious enough. Employees in such roles should be aware that even a few minutes away from their post without permission can put their job at risk. The case also highlights that a fair process does not always require a face-to-face appeal, provided the employee has a genuine opportunity to be heard.
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