Peter Mulryan

Cook feigned that he had a broken leg and he tripped and he fell.

He couldn't come to court one day.

He couldn't sit on the hard seats in the court.

Played the game as best he could.

17 days later, the verdicts were in.

Cook was back behind bars, having been sentenced to 10 years in prison for a second time.

But there was no jubilation.

There was no sense of victory.

The day after the second trial ended, Siobhan and her father drove to Wales.

All these years later, Siobhan can remember exactly what her dad said to her on that journey.

Siobhan's dad was sobbing now, fighting back the tears.

And as you know, Bimbo was the garter who gave Cook the nickname Alpha 7 and who was a regular visitor to Radio Dublin in the late 70s.

It's only now, all those years later, that Siobhan and her father understood exactly what had happened.

Instead of helping Siobhan's father get justice for his daughter, Bimbo enabled Cook to continue abusing children.

For Siobhan, this was the missing proof she had always suspected that certain Gardaí shielded Cook throughout the 1970s and 80s.

What struck me most was the extraordinary lengths he went to in order to control everything and everyone around it.

Even from behind bars, Cook continued to harass members of his own family, some of his victims and anyone supporting them, including this worker who contacted us.

During the period I had a professional involvement with his case, I received letters at my workplace, sent directly from his prison cell.

He knew my name.

He knew where I worked.