A new charge has been filed against a police officer already facing legal proceedings over the alleged assault of Hannah Thomas, a former candidate for the Greens.

Thomas experienced partial vision loss and required multiple surgeries following facial injuries sustained during her arrest at a protest outside SEC Plating in Belmore, located in Sydney’s south-west, last June.

The officer, a 33-year-old senior constable from a specialized command in the South West Metropolitan Region, was initially charged with assault causing bodily harm about a month ago.

Today, he was further charged with recklessly causing grievous bodily harm and has been summoned to appear at Bankstown Local Court on November 18.

The officer’s role within the police force is currently under scrutiny, with his employment status subject to review.

The NSW Police Professional Standards Command is investigating the incident.

A critical incident investigation, with oversight by the Law Enforcement Conduct Commission, is also ongoing.

Thomas, who challenged Prime Minister Anthony Albanese for his seat of Grayndler at the federal election this year, was one of five people arrested and charged after police tried to move on protesters.

Police, however, dropped their charges against her in court last month.

She has launched legal action against NSW Police, alleging assault and battery, false imprisonment, malicious prosecution, misfeasance in public office and collateral abuse of process.