Employers are wary of continuing to employ employees who cannot provide them with evidence of their right to work in the UK, as it is unlawful to do so, and employers can be fined or criminal charges can be brought against them. When one of the Royal Mail’s employees refused to give them the information they needed to be sure he could continue to work for them, the Royal Mail dismissed him. It turned out that the employee did have the right to work in the UK at that point, but because the Royal Mail could not have known that, because he did not give them the information, the court found that the dismissal was fair.