The reason the police detained them was because they refused to comply with the law banning the wearing of masks. This law was introduced in Hong Kong last Saturday, October 5th. The purpose of the ban is to know the instigators of the riots in person. Seventy-seven Hong Kong residents refused to cooperate with the authorities and ignored the police demanding that they remove their masks. As a result, they were detained. People detained at rallies are facing a prison term of up to one year and a fine of twenty-five thousand local dollars. In US dollars, this amount is equal to three thousand two hundred units.
Recall that mass demonstrations have been going on in Hong Kong since June of this year. The initial reason for the mass exit of people to the streets of Hong Kong was the adoption of a law by local authorities, according to which suspects of any crimes can be redirected to mainland China. The later behavior of police officers at rallies further contributed to the spread of unrest in the streets. For four months of rallies, two thousand three hundred people were detained. Despite the fact that the law on the extradition of Hong Kong suspects to mainland China was revoked, on October 5, the Hong Kong administration passed a law banning the wearing of masks, causing a new wave of indignation among the urban population.