Story highlights Hong Kong woman sentenced to 3.5 months in jail for "assaulting a police officer" with her breast

Protesters tell CNN the sentence is ridiculous, alarming, sexist

Hong Kong (CNN) Forget umbrellas: The newest symbol of protest in Hong Kong is the bra.

That's what dozens of angry citizens wore Sunday in a demonstration against what they say is an absurd and sexist ruling: The sentencing of a female protester to three and a half months in prison for "assaulting a police officer" with her breast.

Ng Lai-ying's chest bumped the right arm of policeman Chan Ka-Po during a crowded protest against mainland Chinese border traders in March.

Amateur footage from the chaotic incident cited by local news reports shows the 30-year-old woman falling to the ground during an interaction with police officers. It's unclear what happens next, but when she reemerges her face is bleeding.

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During her trial, Ng pleaded not guilty, saying she cried "indecent assault" when the police officer's hand landed on her breast, according to the South China Morning Post

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