Fiona trained as a Registered Intermediary under the Ministry of Justice scheme in 2007, building on her professional background as a Speech and Language Therapist (SLT). From 2015, in addition to her Registered Intermediary work with witnesses, she has worked as an intermediary for adult defendants, sharing some cases with colleagues. In her intermediary and SLT work, she has a special focus in working with adults with acquired neurological conditions, such as stroke, brain injury or dementia.