Stamping video: What justifies police officers using force?

A police officer has been suspended after a video showed a suspect being kicked in the head and stamped on at Manchester Airport. 
  
The police watchdog has started an investigation into the level of force apparently used by the officer. 
  
On this episode, Niall Paterson speaks to our north of England correspondent Shingi Mararike and to former officer and Sky News police commentator Graham Wettone about the latest challenge facing Greater Manchester Police. 

Audio credit: BBC Radio Manchester

Producer: Emma Rae Woodhouse
Promotions producer: Jada-Kai Meosa John, Ifra Khan 
Editor: Paul Stanworth

[viviennepickstock]

All firearm police are trained not to take hands off the weapon and to use and doing his job when in the moment he believed there to still be a threat !

[Zomgtforly]

The Sky news comments section is full of people who would look up at a rainstorm until they drowned.

[TayWoode]

Wonder my comment keeps getting deleted.
Wonder why sky has comments turned off on the other videos and doesn’t explain what happened before leading up to this.
The woman didn’t break her nose herself, one of those lot broke it

[varadharajannadarajah]

No armchair expert holding coffee mug in hand, should be telling a police officer/serviceman, how they should defend themselves when they come under attack. It's sickening, no one is talking about the poor policewoman who got grievously injured.

[hourbee]

Now Labour is going to dismantle our policing services and replace it who knows what.

[PawsThought]

Those guys are stress tested on everything. They cannot carry a firearm unless. Mistakes happen, sure, but not this time. They used reasonable force in the circumstances imo . Airports are almost constantly on severe alert ( but not in writing )

[MilankaMilosevic-lu]

A sudden spark of emotions, frustrations, angers !

[MilankaMilosevic-lu]

But, when the Brittish, rulled, on India, Pakistan, etc, in the XIX th century, there were no CAMERA to record the soldiers there 😐🇬🇧🇬🇧🇬🇧

[yvonnejohnston]

why do u allow comments on this subject, yet wont allow comments regarding the terrorist stabbing on a british soldier??? pandering to those scientists and doctors from the peaceful religion again....again

[NathanMatthews.]

People complaining about the women with a broken nose. Why she there in the first place? Why aren't the tough guys so concerned about her nose there for her

[varadharajannadarajah]

No armchair expert holding coffee mug in hand, should be telling a police officer/serviceman, how they should defend themselves when they come under attack. It's sickening, no one is talking about the poor policewoman who got grievously injured.

[MilankaMilosevic-lu]

But, when the Brittish, rulled, on India, Pakistan, etc, in the XIX th century, there were no CAMERA to record the soldiers there 😐🇬🇧🇬🇧🇬🇧