A big rise in the number of arrests of demonstrators has prompted a group of legal professionals to produce a handbook to explain their rights.
The group's spokesman is Craig Choy, 34, a former criminal law barrister who now works as an in-house lawyer.
He said: "We noticed that more people were being arrested at protests, so that's why we gathered this publicly available information so they know their rights." He said the group was not affiliated with any political party and the booklet was also applicable to daily life, not just for protesters.
"We aren't just talking about pro- and anti-government protesters. It's about rights under the International Covenant on Civil and Political Rights," he said.
"Everyone has an opinion and I welcome protests because they help society to work out a compromise." Choy estimated that the booklet, published just before Christmas, has been downloaded about 10,000 times.