The paedophile molested two sisters
In the 1970s, Alfred Dillon, 65, targeted two young, neglected and vulnerable sisters, according to reports.
Liverpool Crown Court heard he visited their mother to drink and have casual sex, before he turned to the young girls and molested them.
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Prosecutors said Dillon even forced one of the girls to perform a sex act on him, while he had sex with her mother.
During the sentencing, Judge Andrew Menary was quick to attack the girls' mother who was a “completely inadequate parent”.
The girls were abused in front of their mother
He added: “The evidence suggests that you were regularly violent towards her, beating and threatening her in front of the children.
“When you were not having sex with their semi-conscious mother, you from time to time, turned your attentions to them.
“What you did to and with these little girls was beyond depraved.
“It was not unusual for you to be having intercourse with the woman at the same time that one or other of the girls was made by you to watch.”
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One of the sisters has suffered from severe depression and tried to commit suicide after she was sectioned at a psychiatric unit.
The prosecutor Martine Snowdon said: “She describes her life being changed forever at the hands of a sadistic and perverted monster.
“If he goes to prison it doesn’t matter for how long, because he will never be imprisoned for as long as I have been.”
In a bid to defend her client, Sarah Holt said the paedophile “maintains his innocence”.
Judge Menary said Dillon was an offender of particular concern, meaning he must serve an extended year on licence.