I have been informed by the Garda Síochána Ombudsman Commission (GSOC) that the death of a complainant does not act as a bar to the investigation of a complaint of misbehaviour by a Garda member. Provided the complaint fulfils the admissibility criteria set down in the Garda Síochána Act 2005, it will be admitted and sent for investigation. However, the fact that a complainant has died could, depending on the circumstances of the case, impact upon the progress of the investigation in particular, for example, where the complainant is a crucial witness. One cannot rule out the possibility that in the absence of the testimony of the complainant, it is no longer practicable to proceed with the investigation. However each case is dealt with on its own merits by GSOC.
As the Garda Síochána Ombudsman Commission is independent in the exercise of its functions, the decision to continue with an investigation in a situation such as this is a matter solely for the Commission.