Centre of Forensic Interviewing


Photo of Dr Brendan O'Mahony

Dr Brendan O'Mahony

  • Role Title: Visiting Fellow
  • Address: St George's Building, 141 High Street, Portsmouth PO1 2HY
  • Telephone: 023 9284 3927
  • Email: brendan.o'mahony@port.ac.uk
  • Department: Institute of Criminal Justice Studies
  • Faculty: Faculty of Humanities and Social Sciences


Brendan is registered with the Health and Care Professionals Council as a Forensic Psychologist. He currently works in private practice completing forensic risk assessments for Parole Board oral hearings and expert witness court reports. He holds the Cardiff University Bond Solon Expert Witness Certificate. As an expert witness Brendan has been given the opportunity to review and comment on police witness interviews where vulnerable witnesses have had a Registered Intermediary present. He also examines police suspect interviews as part of his overall assessment for court reports.

Brendan is a Registered Intermediary with the Ministry of Justice in London and he also accepts instructions to work as an intermediary with vulnerable defendants.

In 2013 Brendan completed his Professional Doctorate in Criminal Justice (DCrimJ) at the University of Portsmouth. His research focused on the role of intermediaries with vulnerable defendants.

Teaching Responsibilities

During the last few years Brendan has been invited on a regular basis by two UK police forces to deliver a training workshop as part of ABE interviewing courses, focusing on the needs of vulnerable witnesses and the use of Registered Intermediaries. He has also frequently delivered a workshop with similar content to student police officers.

He delivers lectures on an occasional basis to undergraduate and postgraduate students at London South Bank University, Lincoln University and Sheffield Hallam University. He has recently been invited to deliver occasional lectures to postgraduate students at the University of Liverpool.

In 2011 Brendan was invited to Montreal by Professor Anne Crocker to address a conference being held at the Douglas Institute / McGill University.