Seven police officers have been arrested on suspicion of grievous bodily harm for allegedly beating a protester during the Hong Kong riots, according to local media reports.
The arrests come after a video of Ken Tsang being attacked near the Admiralty protest camp emerged last month.
All the officers had already been suspended from duty.
Hong Kong police have arrested two student leaders of the pro-democracy protests.
Joshua Wong and Lester Shum were held by officers, who attempted to clear hundreds of protesters overnight after obtaining a court order.
Riot police demolished barricades which have been up since the protests began in September, allowing roads to open again.
Eighty court-appointed bailiffs wearing red caps and "I love Hong Kong" T-shirts began clearing metal and wooden barricades where hundreds of tents had been erected.
But defiant protesters, whose symbol has become the umbrella, vowed to stay put as talks with the government remain unresolved.
A British banker accused of killing two Indonesian women in Hong Kong has been declared fit to stand trial for their murders.
A judge ruled that Rurik Jutting, 29, was mentally fit to stand trial next year following two weeks of psychiatric examinations, the AFP news agency reported.
The bodies of Seneng Mujiasih and Sumarti Ningsih - reported to be sex workers - were found in his flat on November 1.
Mujiasih was found with knife wounds in the living room, before Ningsih's body was discovered hours later in a suitcase on the balcony.
Mr Jutting, a Cambridge University graduate, recently worked as a securities trader at Bank of America Merrill Lynch.
The case was adjourned until July.
A court in Hong Kong has adjourned the trial of a British banker accused of the murders of two women, pending a psychiatric report on the suspect.
29-year-old Rurik Jutting was charged with two counts of murder last week after police found the bodies of two women in his apartment, including one inside a suitcase on a balcony.
The court granted a request from prosecutors that the hearing be adjourned until 24th November so two psychiatric reports could be prepared, Reuters have reported.
Wearing a black T-shirt with New York emblazoned across the front and sporting a beard and mustache, Jutting, when asked if he understood that he needed to get his lawyers to represent him, replied to the judge: "Yes, madam."
He has said little else in his two brief court appearances so far and has not entered a plea.
British banker Rurik Jutting was this morning driven into a Hong Kong court charged with the gruesome murder of two reported sex workers from south-east Asia.
The 29-year-old Briton was arrested after the victims were found in his apartment on Saturday.
ITV News reporter Richard Pallot has the details:
The 29-year-old Brit was privately-educated and studied at Cambridge before becoming an investment banker in London and then Hong Kong.Read the full story ›
British national Rurik Jutting had left a chilling out-of-office email message at the bank from which he recently resigned.
The 29-year-old has been identified as a Cambridge-educated investment banker who had been employed at Bank of America Merrill Lynch until recently.
It is thought that he moved to Hong Kong from London in July last year.
The automatic response for his email account at the bank read:
I am out of the office. Indefinitely.
For urgent enquiries, or indeed any enquiries, please contact someone who is not an insane psychopath.
For escalation please contact God, though suspect the devil will have custody (Last line only really worked if I had followed through).
The message appeared to suggest that he had meant to kill himself.
A British man has appeared in court in Hong Kong to answer charges relating to the murder of two women
Rurik Jutting, who was named in a court document, was arrested after the bodies of the women - reported to be Indonesian sex workers - were found at his apartment on Saturday.
Mr Jutting was unshaven and wearing a black T-shirt for a brief appearance at Eastern Magistrates Court.
The BBC reports that he replied "I do" when asked if he understood the charges against him.
A spokesman for Bank of America Merrill Lynch said Mr Jutting had worked at the bank until recently.
A man believed to be 29-year-old British citizen Rurik Jutting has been pictured arriving at a local court in Hong Kong to face two counts of murder.
It follows local authorities finding the bodies of two women in his apartment.
Police have not officially identified Mr Jutting, while the Foreign Office said a British national had been held but did not give further details.
Local media reports have identified one of the victims as Sumarti Ningsih, a 25-year-old Indonesian.