I didn't do anything, The problem is i'm black

A shocking video has shown the moment a father-of-two was Tased by police and arrested for refusing to give his name as he waited to pick up his kids after school.

Christopher Lollie, 28, was arrested after the incident in St Paul, Minnesota on January 31, but after witness statements and the video, they have now dropped the charges, he said.

Lollie was sitting near his children's school after working an overnight cleaning shift when a security guard approached him and told him to move because it was a private area.

Not seeing any signs indicating this, Lollie refused and the security guard called police, the Pioneer Press reported. As Lollie got up and headed to the school, officers arrived and caught up with him.

On the video taken on his cell phone - which he says he only got back recently after it was confiscated by the police - Lollie can be heard calmly asking why they need his name as he walks.

'Why do I have to let you know who I am?' Lollie asks the officer. 'I don't have to let you know who I am if I haven't broken any laws.'

Moments later, he is apparently knocked to the ground and the footage goes dark, but he can be heard screaming for help as he is held on the ground.

One of the officers orders him to put his hands behind his back 'otherwise, it's going to get ugly'.

Lollie was charged with trespassing, disorderly conduct and obstructing legal process, but all counts were dismissed on July 31 after Lollie's attorney showed the video and witness statements in court.

He told the Pioneer Press that when the police approached him, he tried hard to remain calm 'because I know if I do anything outside of these bounds, they could really do some damage to me'.

He said that it was heartbreaking knowing that some of his four-year-old daughter's friends and teachers had seen the altercation.

'One of the kids in the class that saw what happened (later) said, "When I saw them doing that to Allahna's daddy, it made my heart feel so sad",' Lollie said.

He said he is considering a lawsuit. Watch the video below...