The Police Ombudsman is appealing for witnesses to an incident involving PSNI officers at a Belfast hospital.
It involved a member of the public and two police officers at the Mater Hospital on March 26.
The Ombudsman's Office said: "It happened between 8pm and midnight in the hospital’s main waiting area as the officers brought a man to the hospital for treatment.
"We believe some people may have recorded video footage of the incident on their mobile phones, and would be particularly keen to hear from them or anyone else who saw what happened.
"If you believe you can help, our witness appeal line is 0800 032 7880."
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