更新1:
Thanks keiyu.
更新2:
Is it illegal to take a picture of a girl fully clothed ? why can't we call the police when someone takes an unwelcome picture of us ? What is the exact context of the HK law regarding this matter ?
更新3:
I understand the guy at the MTR didn't have the best intention taking candid photos, but one can argue that he was just picking the best angle for his composition.
更新4:
The foul landguage use in MTR is another subject. I'll ask another question for that.