Inside the Court, the trial of several Pakistanis was coming to a conclusion
I've bolded the key words for you. It had not *come* to a conclusion, it was *coming* (i.e. still active). The Jury was not yet discharged, the court not cleared, the trial was not yet over.
Again, the jailing was for breaching court rules, plus extra for the breach of the peace (which he clearly was, by the definition of the law - look it up) and for a second offence.
There was no fast tracking - judges can and commonly do jail people for breach of court rules. It's normal, and a sign of how strongly the rule of law is upheld. Even groomers and rapists deserve an unprejudiced rigorous trial, as that way the public has confidence in the proceedings. Ironically, Robinson's actions could have let them go free, by causing a mistrial.
There is an undercurrent to all this, which might explain the sensitivity around the trial and Robinson's arrest. The far right want a race riot, and they have been goading for one for several years, by provocative actions such as marches through immigrant neighbourhoods, and pouring petrol on tensions over court cases such as this (which being widely reported in the media, so it's no secret, everyone knows there's been a problem).
It has been suggested by some that the far right and the rapist gangs in the last trial actually had some sort of 'arrangement' to get the trial derailed. That way, the rapists go free (mistrial) and the far right get their riot. It suits them both.
Because the police and the courts *know* that the far right want to create public disturbance, one of their leaders stood outside a trial streaming it live on youtube in order to get attention and some sort of reaction (increased anger) is obviously a Breach of the Peace ("likely to create public disorder"). Added to Robinson's revious arrests for violence, he is obviously a risk to public order when stood outside a court trying to get publicity for his cause.
So there is clearly justification here for his arrest, because his group has a well-known agenda (public disorder, riots), he has a violent past so is not an 'innocent bystander', and his live-streaming was being watched by far-right followers who could then be motivated and agitated to cause violence on the streets.
It's simple really. Or do you think he should have been allowed to carry on, despite all that is know about him, his group, and their agenda?
The English public overwhelmingly reject Robinson's EDL group, and their activities: yougov.co.uk/news/2012/10/08/views-english-defence-league/
The police and courts are defending that society form these extremists, which is their job.
Now that is the way we see it in America.
Maybe because you're seeing it from a very, very long way away?