Totally unrealistic from the start. A supposedly highly trained bomb disposal officer switches attempts to switch a light on in a building with a suspected rigged bomb!!! Really! This would have been taught in day one of bomb school!
And the outfits they were wearing wouldn't have protected them from a fire cracker never mind a bomb. Then they all approach a suspect car and don't check under it till they've looked inside with armed police standing right next to it. Expected much more from 'Vicki McLure'!!