Around 100 people wearing a variety of multicoloured bras were stood shouting outside Hong Kong’s police headquarters this weekend, protesting against the conviction of Ng Lai-ying. The 30-year-old was jailed for three and a half months last week for "assaulting a police officer with her breast" after she complained of being groped at a protest.

Ng Lai-ying was protesting against Chinese mainlanders buying tax-free goods in Hong Kong last March when a male police officer allegedly touched her breast without her consent. The judge ruled against her and said that she deliberately touched the male police officer with her breast so she could get him in trouble. The magistrate said she had “used her female identity to trump up the allegation that the officer had molested her”.

People wore bras over their T-shirts at the protest, chanting “breasts are not weapons”, and an organiser and spokesperson for the “breast walk” told Al Jazeera that the claims of assault against Lai-ying implies that it is wrong for women to complain when they feel harassed. She said: “We think it's very problematic. We have a common understanding that women should feel comfortable to speak out if they feel they're being attacked. I think it's a ridiculous to claim that a woman's breast is a weapon. We can't imagine why this happened.”

Have a look at some the photos below.