In the United Kingdom, data regarding the relationship between migration and sexual offences is highly debated due to data gaps, but broad institutional research shows that foreign nationals are convicted and imprisoned at a rate roughly proportionate to their share of the overall UK population. 1, 2]
The Migration Observatory at the University of Oxford reported in August 2026that non-UK citizens accounted for 13.1% of people given cautions or convictions in 2024, and 12.1% of the prison population as of June 2025. This closely mirrors the roughly 12% to 13% share that non-citizens make up of the total adult population. 1, 2, 3]
However, looking specifically at sexual offences and sub-demographics, the picture is complex, and researchers point to several key pieces of evidence regarding whether migrant men are more likely to rape or commit sexual assaults than the general population.
- The Macro Picture: No Correlation to Violent Crime
Historically, broad-scale UK data does not link immigration waves to increases in violent or sexual crimes.
- A prominent London School of Economics (LSE) study led by researchers Brian Bell, Francesco Fasani, and Stephen Machin analyzed two massive waves of UK immigration (the asylum seeker influx of the late 1990s and the post-2004 EU expansion). They found no statistical impact on violent crime. While some areas with high asylum seeker placement experienced modest rises in property crime (theft), violent and sexual crime metrics remained unaffected. 1, 2]
- The Migration Observatory reiterates that the foreign-born share of a local UK population does not correlate with higher local violent crime rates. 1]
- The "Age-Profile" Distortion
Criminologists continuously emphasize that
young men are the primary drivers of violent and sexual crime globally, regardless of nationality. Because asylum seekers and certain migrant cohorts coming to the UK are heavily skewed toward young males, a raw, unadjusted comparison against the general British public (which includes children, women, and the elderly) naturally makes the migrant group appear statistically more criminal.
1,
2]
- According to the Migration Observatory, once you adjust the data to compare migrants against British citizens of the exact same age and gender profile, the overall incarceration and conviction gap shrinks or disappears completely, showing that foreign nationals are actually underrepresented relative to their demographic peers. 1, 2]
- The Challenge of Specific Overrepresentation
While the broad foreign-national population matches the native baseline, UK data broken down by specific country of origin does show notable statistical anomalies.
- Fact-checking organizations and Sky News evaluated political claims regarding sexual offence charges. Depending on whether researchers used the 2021 Census or the Annual Population Survey as a denominator, certain specific cohorts—such as Afghan nationals—showed a higher statistical rate of sexual offence charges or convictions per 10,000 people compared to UK nationals. 1]
- However, researchers from UK in a Changing Europe note that these specific spikes track much closer to socio-economic and post-arrival conditions than nationality or culture. Migrants from low-income, war-torn countries are heavily overrepresented in precarious social situations, homelessness, or institutionalized care—all variables that strongly correlate with higher crime rates among the native British population as well. 1]
- Data Collection Limitations
A fundamental piece of evidence is that the UK government
does not officially track crime by immigration status. The
Office for National Statistics (ONS)and the Ministry of Justice record data by
nationality or
country of birth, but not whether someone is a refugee, a student, an economic migrant, or a tourist. As a result, sweeping statistical claims linking specific categories of "migrant men" to sexual assault are mathematically impossible to verify strictly using official UK state data.
1,
2]
This is just ChatGPT obviously, but I'd rather rely on the Migration Observatory, LSE and ONS for the overall picture, than Daily Mail and GB News headlines.