Friday will be the last day of the month-long trial in which Lehrmann seeks vindication over a media report he sexually assaulted Ms Higgins in a Parliament House office in March 2019.
He has flatly denied the allegation and is suing Network Ten and journalist Lisa Wilkinson over a February 2021 report on The Project where Ms Higgins was interviewed.
On Thursday, barristers for Ten and Wilkinson argued Lehrmann had made so many lies over the alleged incident that his account of what happened should be roundly rejected.
Lehrmann will need to prove he was identified through The Project report despite not actually being named.
If he succeeds, Ten and Wilkinson argue that they can prove the rape occurred in Parliament House.
Ms Higgins has suffered significant attacks on her credibility, although this mainly targeted allegations she made about her bosses at Parliament House trying to silence or pressure her against making a police complaint.
On Thursday, Ten's barrister said these extra allegations were irrelevant if the broadcaster could prove the sexual assault actually occurred.
Ten is also running a qualified privilege defence where it has to prove that even if the material was defamatory, it acted reasonably in publishing something in the public interest.
Justice Michael Lee has indicated he intends to start writing up the judgment as soon as possible.
Lehrmann's trial in the ACT Supreme Court on a charge of raping Ms Higgins was derailed by juror misconduct.
Prosecutors did not seek a second trial, citing concerns for Ms Higgins' mental health.
He has been charged with allegedly raping another woman twice in Toowoomba in October 2021 and remains before Queensland courts.
He has not yet entered a plea but lawyers have indicated he denies that allegation.
1800 RESPECT (1800 737 732)
National Sexual Abuse and Redress Support Service 1800 211 028
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