Charges were laid after a teenage girl was apparently detained and assaulted during a robbery at Cartwright last Monday night.
Three people were charged after allegedly detaining the girl and threatening her with a knife.
About 9pm, a girl, 17, and two women, both 18, went with a man, 25, to a unit on Permian Drive to meet a friend.
Once at the home, an altercation occurred, and the youngest girl was allegedly detained by three people known to her and threatened with a knife.
She was assaulted and police will allege that her phone and laptop were stolen.
She was able to get free and she ran away and notified police.
Liverpool police officers went to the unit and established a crime scene.
Several items were seized from the home for forensic examination.
Following inquiries, police arrested two women, 18, and a man, 25, at the scene.
They were taken to Liverpool police station, where they were charged with detaining someone in company with intent to obtain advantage, robbery in company, assault occasioning actual bodily harm in company of others, being armed with intent to commit an indictable offence and threatening injury with intent to commit an indictable offence.
All three were refused bail and were due in Liverpool court the next day.