The request was for the 2016/17 financial year to enquire:

1. How many reports of medication errors were received, where the degree of harm was recorded as death, together with a breakdown of where these incidents happened, (e.g. acute care, mental health etc).  And;
2. For each incident provide a summary, showing the name and quantity of the drug that should have been received and the name and quantity of the drug that was actually given. Also requested was a medication incident category for each incident (e.g.: wrong dose, monitoring, omitted and delayed medicine). The response should exclude the name of the venue, staff and patient.

NHS Improvement held the information requested and disclosed it.