A woman had her handbag snatched from her hand by two masked men while out trick-or-treating with a young child.
The 25-year-old was ambushed by a man in a skeleton mask and another in a balaclava the day before Halloween.
Details of the crime have only just been released by the police.
The men ran out from behind the group at 7pm on Broomfield Road, Marsh, on Wednesday, October 30 .
One of the suspects is 5ft 7ins tall and of medium build.
He was wearing a black balaclava which was covering his face and a black hooded jumper with the hood up.
The other suspect was also 5ft 7ins tall and of medium build. He was wearing a skeleton mask and a black hooded jumper with the hood up.
Officers from Huddersfield police would like to speak to anyone who has information about or witnessed the offence.
Telephone 101 or Crimestoppers anonymously on 0800 555111