The inquiry started shortly before 11am and, some five hours later, limps towards a finale.
The upshot of today's evidence? The fight between the country's top lawyers is showing no sign of abating.
Solicitor-General Justin Gleeson, SC, has said he considers a direction issued by Attorney-General George Brandis requiring all ministers and departments to seek his permission before asking Gleeson for advice is "unlawful".
He said he will make a "conscientious decision" to ignore the direction if he is asked directly for advice by, for example, the Governor-General.
Brandis has denied he misled Parliament by claiming he consulted Gleeson about this direction, a claim Gleeson denies.
The Attorney-General says both he and Gleeson are "fussy about words" and this whole dispute centres on a difference of opinion about what is meant by consult.
That concludes our live blog. Thanks for reading.