Peter Dutton’s Home Affairs Department is under fire after the senate found it awarded a $423 million dollar contract to security company, Paladin, operating out of a beach shack on Kangaroo Island in 2017.

The senate will convene today to question the department about its consideration of the poor debt management of the Paladin’s owner, the inability to begin paying the contract and the lack of alternative bidders.

Labor senator Penny Wong says it is deeply concerning that so many taxpayer dollars went to a company with such a poor track record.