She wanted UK law for her child, but UAE law for the boy. Hypocrisy & double standards in every way.
Reading this, I now understand what people are saying about the mother. She was vindictive at best - she wanted the boy to be punished but not her daughter. Whatever her intention for being completely cruel to this teen, what she did was utterly unfair and mean-spirited. I wonder how her relationship with her daughter would be from now if she truly liked the boy.
She didn't cause his death of course but it's the ripple effect due to the vindictiveness, hypocrisy and double standards of her action that's caused people to judge her harshly, as she did to Marcus (but even worse since her harsh judgement caused him to be sent him to prison).