What is the Healthcare Safety Investigation Branch?

Our investigations look at factors that have harmed or may harm NHS patients. We work closely with patients, families and healthcare staff affected by patient safety incidents, and we never attribute blame or liability.


Our investigations are delivered through two programmes: national and maternity. There are differences in how they are carried out and how reports are published but the aims are the same: to share learning and to make safety recommendations that improve safety at a national level.

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Unintentional overdose

Older male man lies on a bed with his worried wife sitting with him, holding his hand.

In our latest report we share Len's story. He took an accidental overdose of morphine sulfate oral liquid while at home. We've made two safety observations, relevant to manufacturers of morphine liquids, and to encourage participation in HSIB investigations.

Read our latest report
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Help and support

Useful links and resources to help you access the right expertise as quickly as possible.

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Our mission is to improve patient safety through professional safety investigations that do not apportion blame or liability.

We carry out up to 30 national investigations each year and make safety recommendations to improve the healthcare system in England.

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National investigations

We investigate patient safety concerns in NHS funded care in England, issuing safety recommendations to improve patient safety.

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Can we investigate your concern?

Find out how we decide to take an investigation forward and when we're unable to investigate your concern.

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Maternity investigations

Our maternity investigation programme is part of a national action plan to make maternity care safer, bringing about real, system-wide change.

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Latest updates

HSIB welcomes Royal Assent of Health and Care Act

The Health and Care Act received Royal Assent yesterday (28 April 2022). This will establish the Health Services Safety Investigations Body (HSSIB) as a fully independent non-departmental public body…
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Report examines unintentional overdose of powerful medication used for pain relief

We've published a short report that examines the specific risks which may be associated with morphine sulfate oral liquid in a community setting for acute pain.
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BAPM Webinar: Sudden Unexpected Postnatal Collapse

This free to attend webinar is being delivered by the British Association of Perinatal Medicine (BAPM) in partnership with HSIB.
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