 The issues with staff shortages and overcrowding, repeatedly discussed in the press during the middle of 2007, have led two North Shore National MPs to inquire into the issue, noting that a 'crisis of confidence' had developed, which was generating more concern from locals 'than anything else in recent times'.In 2011 North Shore Hospital opened an Assessment and Diagnostic Unit (ADU) designed to improve overcrowding and patient flow through the North Shore Emergency Department, and increase inpatient bed capacity.Waitemata DHB has since made improvements against the NZ Ministry of Health's Shorter Stays in ED target.