Through fingerprint testing, they are able to identify the woman as one Chan Yim-hung, who lived with her husband and son Wing-man, as well as Hong Kong's poorest residents, in the same area of the apartment complex years ago when it still a squatter area.
Using fingerprint testing, they identified the woman as Chan Yim-hung, who lived with her husband and son Wing-man, along with the city's most impoverished people, in the same part of the apartment complex where she had resided years ago when it was a slum area.