30 out of 166 Superintendents are under investigation by the Garda Ombudsman.
The Association of Garda Superintendents says some of these are for their own alleged shortcomings, while others are investigated by association of their subordinates.
The AGS is also calling for a review of what additional resources will be needed in border areas in the event of a hard Brexit.
Juliette Gash reports from Co. Kildare;