Garda Commissioner Nóirín O’Sullivan is in line for a bumper lump sum of up to €300,000 and an annual pension of €100,000 if she can fend off calls for her resignation until the end of November.

It comes as government sources are pointing to the forthcoming Policing Authority report into the Garda faking of 1.5 million breath tests as key to O’Sullivan’s future in office. But if the Commissioner...