Perhaps neighbours/community did suspect, perhaps they didn't- we don't have any information on that.
(The charge was she failed to disclose information on her son after having failed to persuade him to back off).
news.sky.com/story/mother-facing-jail-for-failing-to-tell-police-about-sons-involvement-in-plot-to-bomb-london-13135831
It could have been reported in as suspicious by those knowing the family.
"The truth is appearances can be deceptive". Indeed, of a whole number of crimes.
Les Liasons Dangereuses National Theatre film
Hundreds of illegal migrants to be put in existing military barracks


