A police officer is to face a misconduct hearing for shooting a race relations adviser in the face with a stun gun claiming she mistook him for a man wanted on drugs charges.

PC Claire Boddie had told Judah Adunbi, a community elder in Bristol, that he looked “familiar”. After he refused to give his name a scuffle broke out and she discharged the stun gun, hitting him in the jaw.

The misconduct notice alleges that Boddie did not warn Adunbi before she fired and claims his hands were by his sides at the time. It says Boddie drew her stun gun when Adunbi pushed a second officer’s hand or arm off him but that at the moment she opened fire Adunbi had been moving away from her colleague.

Boddie was cleared of assaulting Adunbi in a criminal court in May. The misconduct hearing will take place over two days at Avon and Somerset police’s headquarters in Portishead.

The misconduct notice claims Boddie’s alleged actions constitute a breach of the standards of professional behaviour for the use of force. It says: “The alleged conduct taken individually or together, amounts to gross misconduct.”

During the trial in May, Boddie told the court she discharged her weapon believing Adunbi had taken up a “fighting stance” and did not know whether he had a weapon.

In court, Adunbi, also known as Ras Judah, said he had refused to give his name in line with his rights as he had done nothing wrong. Of the moment the stun gun was discharged, he said: “All I heard was a noise then I felt like my head was frying.”

Adunbi has sat on Bristol’s independent advisory group, which forges links between the police and the community, and has worked with the Crown Prosecution Service’s local community involvement panel.

The incident occurred last year outside Adunbi’s house in Easton, Bristol. Footage filmed by a passerby was widely shared on social media and made headlines around the world.

In footage shown in court, Boddie is heard telling Adunbi: “You look familiar.” Adunbi refused to say who he is, telling the officers: “I’m an African black individual living in my own city.” He fell to the ground after he was shot and told them: “I’m nearly 70 … here’s my fucking ID.”

The hearing will be heard in public on 4 and 5 September.