British citizen Jermaine Grant, whom Kenyan police arrested unknowingly, has been sentenced to four years at Shimo La Tewa Maximum Security Prison.
Mombasa Chief Magistrate Evans Makori on Thursday found him guilty of being in possession of explosives.
He was already serving another nine-year sentence after being convicted for nine charges among them attempting to register a birth certificate.
Grant was arrested in 2011 by detectives from the Anti-Terror Police who were initially in pursuit of another suspect.
He was apprehended alongside other terror suspects Fuad Abubakar and Warda Breik, his wife.
“We did not know him. In fact, we arrested him just because he was with Fuad Abubakar. We thought he was just some local from Old Town who was enjoying a motorbike ride with Fuad,” Martin Otieno, Head of the Anti-Terrorist Police Unit in Mombasa told The Standard.
The foreigner even introduced himself as a Canadian named Peter Joseph but after cross-referencing with British Counter Terrorism Police, his cover was blown.
The revelation prompted Britain to send five New Scotland Yard detectives to assist Kenya in the investigations.
A raid into Grant's home uncovered an array of materials used to make bombs that authorities believed were planned to be used to blow up parts of Mombasa.
Grant, Fuad, Warda and another Kenyan by the name Frank Ngala were then charged with being in possession of explosives and conspiracy to commit a felony.
Fuad, however, escaped into Somalia soon after he was released a Ksh20 million bond.
