The work of @NIPrisons is complex and challenging. They work with vulnerable, volatile and violent offenders, serve the public and protect our community. They should never be under threat for doing so.
If you can help police with their enquiries into David's murder, please do.
RT @NIPrisons: Today marks the 10th anniversary of the murder of our colleague David Black. The thoughts of everyone in the Prison Service are with Yvonne, …