The disappearance of Azaria sparked court cases that saw Mrs Chamberlain, as she was then known, sentenced to life in jail in 1982.
Mr Chamberlain was given a suspended sentence after being found guilty of being an accessory after the fact.
Mrs Chamberlain-Creighton always maintained that she saw a dingo leaving her tent on the night Azaria went missing.
After Azaria's matinee jacket was found in 1986 the case was reopened and a royal commission in 1987 exonerated both parents.
In 1988 the NT Court of Criminal Appeals overturned all convictions against the couple.
Despite the charges against the Chamberlains being dropped, a coronial inquest into the disappearance of Azaria in 1995 delivered an open verdict.
The latest inquest is expected to wrap up on Friday, but a decision from Ms Morris is not expected for some time.
-AAP