HONG KONG -- Hong Kongā€™s much-maligned police force has slipped on a banana peel by trying to make light of its liberal use of tear gas during the territoryā€™s protest movement.

Mimicking an to a wall, of a canister similarly taped, with the words: ā€œSay NO to violence. Letā€™s leave the tear gas cartridge on the wall forever.ā€

ā€œFor a Police officer, using force, including tear gas, is always the last resort. If rioters donā€™t use violence, Hong Kong will be safe and thereā€™s no reason for us to use force,ā€ the post on its Twitter account said.

Respondents to the post called it crass and some, in turn, posted videos of Hong Kong policeā€™s actions, which protesters say has been excessive.

The police force has fired nearly 16,000 tear gas rounds and made more than 6,000 arrests during the six months of pro-democracy demonstrations that have at times been marked by violent clashes and vandalism of government buildings, transit hubs and commercial spaces.

The protestersā€™ demands include an independent investigation of police actions, amnesty for protesters who have been arrested and retraction of the description of protesters as ā€œrioters.ā€ They say the label characterizes peaceful demonstrators as criminals who could face long imprisonments.

Hong Kong leader Carrie Lam has refused to meet those demands, saying a police investigation is sufficient and that dropping criminal cases against the protesters would not follow the rule of law.

The police watchdog agency that is investigating suffered a blow this week when foreign experts it recruited to bolster the credibility of its work quit, saying its probe lacked the powers and tools it needs.

The police forceā€™s make-light tweet about tear gas initially included a ā€œBananaartā€ hashtag, but that was then deleted. The force then reposted its tweet without it.