A 25-year-old man has been told he is likely to serve a prison sentence for his part in hiding two men and a woman who abducted another woman from a Darwin women's shelter.

Liam Booth has been charged with assisting an accessory after the fact and making a false declaration to police.

He has pleaded guilty to the charges.

The Darwin Magistrates Court heard Booth hid his cousin Patrick Briston and Joshua Walsh after they took Monique Edmondson, 25, from the shelter in August last year.

While they were on the run from police the pair sought refuge at Booth's house, along with the victim.

When Northern Territory Police questioned him, he said he lied and told them he didn't know where they were.

His defence lawyer said Booth had made a number of poor decisions but felt a loyalty to protect his cousin.

Magistrate Daynor Trigg said: "Anyone with a half a brain could figure out she was at extreme risk of being killed.

"If you know someone's life is in peril, you have to help them.

"It is a matter of human decency."

Booth was taken into custody and will be sentenced next week.

Joshua Walsh was found dead after police raided an apartment and rescued Ms Edmondson.

The cause of his death is being investigated by the coroner.