Prior to the transfer of National Referral Mechanism decision making responsibilities to the Home Office Single Competent Authority (SCA) in April 2019, publications were produced by the National Crime Agency (NCA) and can be accessed via the NCA website. https://nationalcrimeagency.gov.uk/component/finder/search?q=national+referral+mechanism+&Search=
Responsibility for publishing the NRM statistics now sits with the Home Office, and the first report (Q2 2019) was published at the end of August. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/827508/national-referral-mechanism-statistics-quarter-2-2019-april-to-june.pdf
The publication does not distinguish the immigration status of confirmed victims but invites stakeholders to submit their interest into a review of how the publication of NRM statistics can be improved.
It is not possible to accurately provide data on the number of confirmed victims awaiting a decision on their immigration status currently due to the range of potential immigration outcomes following an NRM decision.