Why answers remain so hard to find in schoolgirl tragedy

It’s every parent’s nightmare: your child goes off on a school trip abroad and never comes home again.

It became the tragic reality for Tony and Brenda Lawson when their daughter Jessica drowned in southern France in 2015.

Now a French court has decided her teachers were not to blame.

So why did the ruling take seven years and where does it leave her family’s search for answers?

Ian Woods, recently returned from the trial in the Central Massif region in southern France, tells Faye Barker what you need to know…