A MOTHER and son, charged over the murder of senior Sydney police officer Bryson Anderson, have fronted the NSW Supreme Court.
The slain detective inspector from Sydney's far-west was allegedly trying to settle a neighbourhood dispute over a bird cage when he was fatally stabbed in December last year.
In a pre-committal hearing on Thursday, the court heard Mitchell Barbieri stabbed Det Insp twice while his mother, Fiona Barbieri, threatened officers who tried to step in with a hammer.
According to the Herald, lawyers for the accused have called for several police witnesses to be cross-examined on the grounds inconsistencies in their statements weaken the Crown's case.
The hearing continues.