Sean Buckley and Chloe Thomas from Tonypandy have been sentenced to an additional 3 years and 10 months in jail after the Court of Appeal increased their prison sentences.

Sean Buckley, 29, was found guilty of the murder of his partner’s 17 month old son, Finley Thomas, at Cardiff Crown Court in June.

Chloe Thomas, 25, was found guilty of child cruelty, by failing to intervene in the harm that her son was suffering.

Baby Finley suffered a fractured skull and broken ribs at the hands of Buckley, who claimed that Finley had fallen down the stairs.

He also had historical injuries consistent with being physically assaulted, neglected and having been exposed to illegal and prescribed drugs.

Chloe Thomas was said to ‘purposely ignore his suffering’ and didn’t seek medical attention for her son until it was too late.

Sean Buckley and Chloe Thomas have been sentenced to an additional 3 years and 10 months in jail. Credit: Wales News Service

Buckley originally received a life sentence, with a minimum term of 17 years in prison.

He will now serve a minimum term of 20 years

Thomas originally received a 20 month sentence for child cruelty.

It's been raised to 2 years 6 months.

The Lord Chief Justice, Lord Thomas, ruled her original punishment "unduly lenient" at London's Criminal Appeal Court.

Credit: Wales News Service

We have taken anxious consideration over what undoubtedly influenced the trial judge, which was the domineering influence of Buckley. But, bearing in mind the gravity of the matters of which Chloe Thomas was aware, her part in not bringing it to the attention of the authorities and her conduct - even in the last days of Finley's life - in not explaining what had happened and helping to conceal it, we consider that very serious course of conduct was not reflected in the sentence of 20 months.

Lord Chief Justice, Lord Thomas

Both Buckley and Thomas's sentences were referred to the court by the Solicitor General, Robert Buckland QC.

Finley was a very vulnerable young boy who relied on these offenders to protect him. I referred this case to the Court of Appeal as I did not think the seriousness of the offending was adequately reflected by their original sentences. I am glad the court thought it necessary for them to spend longer in jail.

Solicitor General Robert Buckland QC MP