The brother of Cheryl Grimmer has appeared in a Victorian Court after police took action against him to protect the man once charged with his sister's death.
Ricki Nash did not appose the year-long apprehended violence order which prohibits him from stalking, assaulting, harassing or threatening the protected man, who cannot be named for legal reasons.
The protected man was charged in 2017 with murdering the toddler at Fairy Meadow in 1970 but the charge was dropped on a technicality.
While waiting for the Attorney General to review the case, Mr Nash sent a text message to a friend saying he had to "correct a wrong" and a "murderer cannot be allowed walk free any longer".
The court ruled it was possibly a vigilante situation and granted the order.
Mr Nash said surely he was allowed to vent.
The protected man was 17 when he confessed to murder.
Police did not consider they had enough evidence to charge him, until detectives began re-investigating in 2016.
Laws now require an adult to be present for child confessions to be admissible, but this was not the case at the time.
Judge Robert Allan Hulme found that the new laws applied retrospectively.
Mr Nash said he and his family will continue the fight for justice for Cheryl.