What are the risks for British nationals traveling to Iran?

The UK Foreign, Commonwealth and Development Office (FCDO) explicitly advises against all travel to Iran for British nationals due to significant safety concerns. Recent years have seen dozens of arrests of British and dual nationals in Iran, often under vague security-related charges. This pattern of detentions highlights the serious risks faced by UK citizens who choose to ignore travel warnings. The case of Craig and Lindsey Foreman, who were detained shortly after entering Iran despite being aware of the travel advisory, exemplifies these dangers.