However, no disciplinary action may be taken against a seconded member of the Garda Síochána by the Chief Constable of the PSNI. Instead, the findings of a disciplinary investigation or the outcome of an appeal or review of such findings will be transmitted to the Garda Commissioner, or the Government in respect of gardaí above the rank of inspector, for whatever action is deemed appropriate. The disciplinary action which may be taken by the Commissioner or the Government under this section is defined. A member of the Garda Síochána whose secondment to the PSNI has expired or been terminated will be obliged to co-operate with any such investigation as if he or she were a member of the PSNI and any failure to do so shall constitute a breach of discipline.