The defendant said after that point, he got up from the floor and looked for his brother. “I stopped when I saw the police officer [PC Marsden] stood in a shooting stance,” he said.

“The way he was stood, it looked like he had a gun in his hand.” Jurors were told it was a Taser. “At the time I thought it was a gun,” Mr Amaaz said.

“I just saw him in this shooting stance, pointing what I thought was a gun at my brother. I thought ‘this man is going to shoot my brother’. I thought ‘I need to stop this guy from killing my brother’.

“I striked [sic] him. I remember shouting ‘no’ at the officer. I was thinking ‘I can’t let him, I can’t let him pull that trigger’.”

Mr Amaaz said there was ‘no reaction’ from PC Marsden. “I strike him, I punched him,” Mr Amaaz said. He said he didn’t realise he was still holding his phone.

“I hit him to the side of his head. [His aim was] to stop this man. I couldn’t stand there and do nothing.”

“Does it follow that you took that action because you were fearful of your brother’s life?,” Mr Khan asked.

“Yes,” Mr Amaaz said. “Were you acting in defence for your brother, is that your case?,” the barrister asked.

“Yes,” Mr Amaaz replied. “What’s the next thing you recall?,” he was asked.

“The next thing, everything in my body went stiff. I remember taking him to the ground with me, but not deliberately, my arms were around him at the time and they were stiff so naturally he came with me,” Mr Amaaz said.

Describing the pain, he said: “It was the most disgusting pain I ever felt in my whole life. It was indescribable, like everything being sucked out of my body,” he said.

“Were you aware at that time, a taser had been used on you?,” Mr Khan asked.

“No,” said Mr Amaaz.