A mother and daughter that formed Britain's first all-female Islamic State terror cell have been jailed over an Alice In Wonderland-inspired plot.
Rizlaine Boular, 22, planned to stab random members of the public around the Palace of Westminster causing widespread panic, injury and death in April last year, the Old Bailey heard.
The mother-of-one adopted the murderous scheme from her sister Safaa Boular, 18, who was in custody over an attempt to become a jihadi bride in Syria the year before.
In coded phone calls, they discussed holding an Alice In Wonderland themed tea party with Rizlaine cast as the Mad Hatter.
Counter-terrorism police swooped to arrest the plotters after a proactive surveillance operation with MI5, the court has heard.
Rizlaine Boular pleaded guilty to preparing acts of terrorism and was jailed for life with a minimum term of 16 years.
Her Morocco-born mother Mina Dich, 44, from Vauxhall, south London, was handed six years and nine months plus five years on extended licence after she admitted helping her.
Judge Mark Dennis QC said Dich "failed in her parental role" to stop Rizlaine Boular just a month after the earlier Westminster atrocity and played a "significant role" in radicalising both her daughters.
He told the mother she bore a "heavy responsibility".
He told Rizlaine she had planned a "wicked act" born from distorted views.
He said: "There are individuals walking the streets today whose lives could have been irreparably damaged or lost had it not been for the intervention of the police and security services."
The defendants, who wore Islamic dress in the dock, made no reaction.