A WOMAN who killed her four-month-old son when she knocked a five-stone television set on to his head while she was high on drink and drugs has been jailed for 15 months.

Natalie McMillan, 25, put her "self-indulgent drugs lifestyle" ahead of the welfare of her son, Kian, who died from "catastrophic injuries", said the Recorder of Preston, Judge Anthony Russell QC.

The baby was lying on his changing mat at the family home in Scarlett Street, Burnley, when the defendant attempted to move the TV to plug in a scart lead and watch a DVD.

While giving evidence at her trial she tried to shift the blame to the boy's father, her ex-partner Edward Hanratty, 41, and said she was upstairs in bed at the time.

She denied she had been under the influence of drugs when her son died but tests later showed she had taken heroin and valium.

Hanratty had also taken drink and drugs and had passed out on the kitchen floor at their address in Scarlett Street on December 6 2011.

Both pleaded guilty to child cruelty on the basis of neglect during their trial at Preston Crown Court last month.

McMillan, of Clarendon Road, Leeds, was cleared of manslaughter by gross negligence but Judge Russell said today that he was satisfied it was she who actually moved the television through "foolishness".

Hanratty, of Dirkhill Road, Bradford, failed to attend for his sentencing and a warrant for his arrest was issued.