E-Mail A new report shows that British citizens who are missing abroad were more than twice as likely to be found by UK police as police in the country of disappearance. Research by the Centre for the Study of Missing Persons (CSMP) at the University of Portsmouth also shows they were likely to be missing for much longer than if they'd disappeared in the UK. The study found that British people who vanish abroad tend to be missing for extended periods, on average 134 days. This compares with 88 percent of people who go missing in the UK being found within the first 48 hours.