The figures for the number of suspected victims of trafficking or modern slavery referred into the National Referral Mechanism (NRM) are published by the National Crime Agency. The NRM is a framework for identifying victims of human trafficking or modern slavery and ensuring they receive the appropriate support. In 2017, 5145 potential victims of trafficking were referred to the NRM, of which 1384 were referred by the police. For 2018 (up to the end June) there has been 3289 referrals into the NRM, of which 995 were via the police.
In order to understand how many of those referrals by the police were subsequently deported (or removed) we would need to extract the biodata from the NRM systems and cross-match it with the Case Information Database (CID). This data is not currently available at this time.