The actions of some pro-police groups, who recently hurled abuse at a judge for jailing seven officers, were “counterproductive” towards mendingrelations between the city’s law enforcers and citizens, a former police chief told the Post . The warning from Tang King-shing , who was head of the Hong Kong Police Force between 2007 and 2011, came weeks after seven officers were jailed for assaulting activist Ken Tsang Kin-chiu during the 2014 Occupy protest . The ruling immediately escalated the tension between the police force and ordinary Hongkongers, widening a rift that had yet to be bridged since the civil disobedience movement took off more than two years ago. District Court Judge David Dufton immediately became the target of abusive personal attacks from radical pro-police groups that centred on his British nationality. Meanwhile, the city’s serving and former police officers also held one of Hong Kong's biggest mass demonstrations in support of their colleagues. Watch: More than 30,000 gather in support of officers jailed for beating up Occupy protester On Thursday, Tang said there was no proof that there was any problem with having foreign judges , as he called on the public to calm down and stay rational. “I understand people might have very strong feelings about the case, but they should not insult others,” Tang, a local delegate to the Chinese People’s Political Consultative Conference , told the Post on the sidelines of the meeting in Beijing. “I think [these acts] are counterproductive. I want to remind everyone to look at the bigger picture and consider the interests of the whole society.” Any “immature or irrational” acts would be unfair to the prosecutors as well as the seven officers, who had appealed against the ruling, Tang said. Pro-police groups, which have a strong Beijing-friendly background, have mushroomed in recent years in the wake of the Occupy protests to counter the voices of pan-democratic activists. Tang said their emergence was inevitable in today’s heavily divided and politicised society. “When one camp does something, the other group might want to do something too to counter them,” he said. “But the endless escalation [of conflicts] is unhealthy and will affect Hong Kong’s stability and lead to a negative impact on young people.” While the call for a new law to ban insulting behaviour against police officers had recently been renewed, Tang said this was not the only means to soothe the tense relations between officers and the public. Such a law, which he argued should cover not only police but all law enforcers, would also require a wide consensus among Hongkongers, the administration and the Legislative Council. If the judges should not be subject to any form of insult, why do we think our police officers, our law enforcers, should deserve to be insulted? Tsoi Hak-kin, Justice Alliance Party chairman The former commissioner had been dubbed “Sorry Sir” during his tenure due to his penchant for ready apologies over police scandals. But he said it was not appropriate to demand that incumbent police chief Lo Wai-chung apologise over the Ken Tsang case because it could affect the ongoing legal proceedings. Tang remained confident about the police-citizen relationship and argued that the case was just an isolated incident. Justice Alliance Party chairman Tsoi Hak-kin said his group did not mean to widen the social rift. “We did not stir up trouble. It was the Occupy Central elements, the rioters, and the anti-police elements who caused trouble. They politicise everything, and we just stand up to say no to them,” he said. “The court should be independent, and the judges should not be subject to personal attacks or verbal abuse. We agree with that. But if the judges should not be subject to any form of insult, why do we think our police officers, our law enforcers, should deserve to be insulted? “The general impression of the public is that the sentencing is too heavy for the seven cops. And this is the cause of the social rift, not our rallies, which serve only as a channel for the public to voice their views.” Meanwhile, Tang, who joined Hong Kong Airlines as its vice-chairman and executive director last year, said that the Guangdong-Hong Kong-Macau Greater Bay Area concept , which was floated in Chinese Premier Li Keqiang’s annual work report, had given the city’s aviation business a strong boost. Hong Kong Airlines, which has already launched direct flights to New Zealand and will launch another to Vancouver in June, has planned to increase the size of its fleet from 34 to 50 aircraft in two years and expand its routes to Europe, Tang said, though he refused to reveal concrete details or a time frame.