Lauren Booth, Cherie Blair’s half-sister, made the comments as she discussed Saturday’s bloody terrorist frenzy on ITV’s This Morning on Monday.
The journalist, who converted to Islam in 2010, said “drug addicts” were responsible for the atrocities that have plagued the UK and other countries since 2015.
She said: “The Westminster bomber was known to take drugs and use prostitutes.The Tunisia bomber took drugs, the Paris attacker took drugs.
“Muslims have been calling for a long time for the police to come into these areas where drug taking is rife.”
The 49-year-old then hit out at Prime Minister Theresa May who pledged a “tougher approach on terror” and said her “guns ho” stance would not help.
She also claimed the government pulled officers off the streets too soon after the deadly Manchester Arena attack, which left 22 concertgoers dead.
The barrier installed on Westminster Bridge to protect pedestrians from vehicle attacks
Ms Booth added: “I wanted to see the police stay on the streets.
“I think it was a mistake to take the police off the streets that early.”
Following her appearance on the programme, Met Police has identified two of the three terrorists behind London Bridge terrorist attack.
CHANNEL 4/ GETTY
Vile extremists Khuram Shaza Butt, 27, and Rachid Redouane, 30, and a third jihadi were shot dead by officers after they ploughed into pedestrians and slashed at bystanders in nearby Borough Market.
Both were from Barking, in east London. The identity of the third attacker has not been confirmed.