Firstly, you're instantly assuming that either the culprit(s) is either still on, or has ever been on, UK soil and is therefore able to be arrested.I never said they 'haven't got an idea' or that the public 'needing to be told all the information'. It is two weeks since the 'attack' and no one has been arrested for using a 'nerve agent' on UK soil. So there are people roaming the streets of the UK with a deadly 'nerve agent and I repeat there has been no one arrested. Don't police, MI5 and MI6 keep tabs on people in this country or entering this country? It seems not as the government have said they will 'tighten up on private flights from Russia'.
The government, and some Labourites like Yvette Cooper arch supporter of the WMD dossier, are bending over backwards and wanting to blame Putin but the evidence is as flimsy as Saddam Hussein's weapons of mass destruction. Maybe the police are looking in the right place or maybe they aren't. Or maybe the authorities are incompetent in dealing with two people slumped on a bench. We are told this is a deadly 'nerve agent' but the lorry that took the car away was then allowed to go back to its base for then to be 'quarantined'. An incredible response when they said it was a 'nerve agent' attack.
Salisbury nerve agent backlash: Residents outraged as 500 told they ...
Some people in Salisbury aren't to impressed with the authorities. The government can't try and pull 'The Russians are coming' with some deadly 'nerve agent' chemical attack and then have such an incompetent response. This smells like Blair's dodgy dossier all over again so the government can shout war, war against an enemy it doesn't like.
Or, you're assuming that if they are on UK soil that they are currently in a state suitable for arrest or aren't covered by diplomatic immunity.
You're saying the evidence is flimsy - how do you know that? Do you know the evidence? Or are you simply assuming from what you don't know?
Sometimes, due process has to be followed and I'm confident that when the time is right, either there'll be arrests or correct disclosures.