Footage of Tanya Day's police cell fall made public

The family of a woman who died after falling and hitting her head in a Victorian police cell want the world to watch distressing footage of her being "denied her basic humanity and dignity".

CCTV captures Tanya Day falling five times in the Castlemaine cell within a two-and-a-half-hour period after she was arrested for being drunk on a train on December 5, 2017.

Coroner Caitlin English approved the family's call for the CCTV video's release this morning.

"The privacy of Ms Day, regarding trauma and stress, is not an issue here because unusually Ms Day's family are advocating strongly for the release of the footage," she told the court.

"In fact, they are advocating for the very opposite of the protection of privacy, and reject invisibility."

The family of the Yorta Yorta grandmother say the footage is her "voice" at a coronial inquest into her death, though it has been "unbearably painful" for them to watch.

"This CCTV footage shows the last few hours that our mum was conscious. It shows her being denied her basic humanity and dignity," the Day family said in a statement.

"Imagine having to watch your mum die in this way, with nobody held responsible.

"We want the world to see this footage because it is what our mum would have wanted."

They said their mother deserved to be treated with dignity and care rather than "left to die on the floor of a police cell".

The inquest has previously heard police did not enter the cell between 3.56pm and and 8.03pm, when they noticed a bruise on her forehead and called an ambulance.

Ms Day, 55, died 17 days after her arrest from a brain haemorrhage caused by a fall in the cell at 4.51pm.