Kammala wannan magana: A matsayin Babban Mai binciken, ya jagoranci binciken a cikin harin Westminster na 2017 da kuma
Harin da aka kai a gadar Landan a shekara ta 2017. Ya zuwa watan Afrilu na 2021, yana jagorantar binciken a cikin 2019 London Bridge stabbings, wanda aka fara buɗewa a watan Disamba na 2019.