UpdateFrom the comments, mission succesful; although whether we had any influence I don't know. Regardless, excellent news.
Original postAt Justin's suggestion, I have just sent the following email to John Reid, Home Secretary:
Dr Reid,Please write something similar to:
I know that you've met the author of the Rachel in North London website, a victim of the July bombings and organiser of Kings Cross United. You may or not be aware that her passport was either lost or stolen at the memorial commemoration, and she is due to be leaving the country at the end of this week.
If you are able to use any influence whatsoever in your position, given her status, a large number of people around the country would very much appreciate it; I'm sure that I will personally still disagree with you politically, but it would certainly up my respect for you personally.
Best regards, Mat
(full name, full address, full contact details as per formal letter)
A few minutes of your time. A much needed break saved. Special treatment? Who cares, she's gone through enough.