Metropolitan Police Sergeant Paul Barrett was dismissed after being found guilty of drink‑driving while on duty protecting the Iranian embassy in London. [1]

The case highlights the Met’s zero‑tolerance stance on officers breaking the law while on assignment, a policy meant to preserve public confidence in a force already under scrutiny for misconduct.

According to the Independent, Barrett was caught operating a vehicle under the influence during a shift that required him to guard the Iranian diplomatic mission. [1] The offence was classified as gross misconduct, a category that includes serious breaches of duty such as drinking on duty and endangering the public.

The Metropolitan Police announced the dismissal on March 15, 2023, terminating Barrett’s employment without notice. Only one officer was dismissed in this matter, and the decision was described as “appropriate action” by police officials. [2][1]

"The officer's conduct amounted to gross misconduct and we have taken appropriate action," a Metropolitan Police spokesperson said. [1]

A separate Yahoo SG report noted that Barrett turned up to work intoxicated but did not explicitly state he was driving. Because the Independent is the higher‑trust source, its account of drink‑driving is used as the primary narrative. [3]

Police leadership said the dismissal reinforces the force’s commitment to its standards, and serves as a warning that any officer who violates the law while on duty will face swift consequences. [1]

The incident comes amid a series of high‑profile disciplinary actions within UK law‑enforcement agencies, underscoring the challenges of maintaining internal accountability while preserving operational effectiveness. [1]

The officer's conduct amounted to gross misconduct and we have taken appropriate action.

What this means – The Met’s decisive response signals that breaches of law by its own members will be met with immediate dismissal, a move intended to restore trust and deter future misconduct. It also serves as a reminder that diplomatic security duties are not exempt from the same standards that apply to any police activity.