Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, pursuant to the Answer of 15 November 2018 to Question 188046 if he will request the data from the National Crime Agency on the strength of cannabis seized by that agency in order to enable a (a) comparison with the work undertaken by King's College London and (b) study of the data’s relevance to (i) users’ health and (ii) the provision of health services.

Although the National Crime Agency (NCA) collects information about the illegal supply of drugs it does not routinely test the strength of cannabis seized by police. The NCA is not planning to report on cannabis purity and therefore it holds no data that could be compared with information contained in the report by King’s College London.