Al-Hassan argued that demonstrators were warned beforehand and that they refused to leave the area.
You see - if he is warned beforehand that people are suspecting him., he might run away.
She had been warned beforehand that the rioters were on their way but refused to leave.
I am glad that I have been warned beforehand.
Travelers with the Tour were warned beforehand that the descent was especially dangerous because of its many short curves and steep grades.
It is not necessary for the person concerned to have been warned beforehand that they were subject to the Official Secrets Act.
Neo was warned beforehand that destruction of the road would cost him to be fined.
Then, state environmental officers gave tickets to the two Scout leaders, who had been warned of the rules beforehand.
She had been warned beforehand to give the ship a good whack with the bottle.
Though warned beforehand, they had not expected quite such brevity as this.