Re: False flag?
What is very confusing is when people who have no background at all in NBCD make statements about the difficulty about manufacturing things.
The classic example from the past couple of years is the commentary around Sarin and how it is indicative of government involvement. This is the same thing that was used in the Tokyo subway attack in 1995. So unless the Australian government* wants to come forward and take responsibility we have to admit that this stuff can be manufactured by those who have sufficient motivation. Perhaps the same is true for this agent, I have no idea.
Also, was it brought into England, or manufactured somewhere in the UK? Again, no idea.
* Aum Shinrinko - the Japanese group that used Sarin in the attack - originally manufactured Sarin on a station in Western Australia.