Wallace tells Dail former Commissioner attended Garda HQ several times last week

Mr Wallace separately hit out at Ms O'Sullivan's decision to put in place a unit of "personal friends and associates" to interact with the Charleton inquiry.

Controversial former garda commissioner Martin Callinan held a series of meetings at garda headquarters on "several days last week" at the same time as two high-profile scandals in the force were emerging, writes political correspondent Fiachra Ó Cionnaith.

Independents4Change TD Mick Wallace revealed the situation as he detailed fresh internal garda concerns over current garda commissioner Noirín O'Sullivan's creation of a "cabal" of close colleagues to interact with the Charleton whistle-blower smear campaign inquiry.