A video of the arrest shows the moments after the sergeant had called for back-up and a group of police officers "swarmed the building". Neighbours watched as the scene unfolded and some started recording the incident.
In the video, Sam Touray can be heard telling officers, "I'm on my balcony. Anti-social behaviour for what?"
An onlooker off-camera adds: "He's getting arrested for being on his balcony."
He says he was searched and police found nothing on him but still handed him an anti-social behaviour (ASB) warning notice for loitering and drug misuse in the company of others, even though when handcuffed and searched, he said: "I was alone and have video evidence of this."