The mother and stepfather of murdered schoolboy Daniel Pelka have both lost a Court of Appeal challenge to their life sentences.
Magdelena Luczak and Mariusz Krezolek were ordered to spend at least 30 years behind bars for killing four-year-old Daniel, who was beaten to death in March 2012 after months of being starved and mistreated.
They had argued their sentences were "excessive".
Daniel weighed just 1st 9lbs when he died, having been denied food, forced to perform punishment exercises, locked in a box room, poisoned with salt and tortured.
Rejecting their appeal at the court today, Lady Justice Hallett described Daniel's suffering and death as "heartbreaking".
She said the trial judge had been "fully entitled to treat this as one of the most serious offences of murder to come before the courts".
Krezolek had also appealed against his conviction, which was also thrown out by the appeal court judges.
The stepfather of murdered four-year-old Daniel Pelka has lost an appeal against his conviction.
Mariusz Krezolek was jailed for life with a minimum of 30 years after being convicted last year of murdering Daniel, who was the son of his partner Magdelena Luczak, in March 2012.
The four-year-old was starved for at least six months before being beaten to death.
Luczak was also handed a life sentence, and told she must serve at least 30 years. She was due to appeal her jail term today.
Children's services in Coventry have been labelled as "inadequate" in a highly critical report published by Ofsted two years after the death of four-year-old Daniel Pelka.
The schoolboy died in March 2012 after being subjected to a sustained campaign of abuse by his mother and her partner.
A 46 per cent increase in workloads over the last two years mean caseloads for workers are too high, the report said.
The report was based on a three-week inspection by Ofsted earlier this year.
Coventry City Council has said in a statement that all those working in children's social care at the authority is "committed to any lessons" that could prevent another Daniel Pelka case from happening again.
The tragic case of Daniel Pelka has had a profound effect on everyone working within children’s social care and we are committed to learning any lessons that could help prevent a similar case ever happening again.
The Serious Case Review published last September and the subsequent Deeper Analysis document released today, is a snapshot of what services and systems were like when Daniel was murdered by his mother and step-father almost two years ago.
There have been significant changes in many areas since then that are now embedded into the way we work with children, their families and our partners that are helping to make a difference.
But there is still more to do and we are always looking to improve. We have a committed workforce who are carrying out excellent work across the city.
A council report into the death of Daniel Pelka - who was murdered by his mother and stepfather in a campaign of abuse - is published.Read the full story ›
A report examining the reasons for a series of failings which led to the death of Coventry youngster Daniel Pelka has said child protection workers were forced to juggle "too many competing priorities".
Four-year-old Daniel died in March 2012 after a campaign of abuse by his parents, who starved, tortured and eventually murdered him.
A series of errors was identified where police, teachers and social care workers failed to spot what was going on - and the Deeper Analysis and Progress Report, by the Coventry Safeguarding Children Board, was requested by government minister Edward Timson last year.
He asked the board to investigate why information was not effectively recorded, why information was not shared, and why four separate assessments by social care workers failed to identify the risks to Daniel.
It claims that Daniel's case was "extreme and outside the experience of most professionals" and identifies a number of failings - including overworked child protection staff, poor leadership at Daniel's school, and poor communication between different agencies.
The former headteacher of Daniel Pelka's school was suspended from his new job last week, ITV News' Sejal Karia reports.
I understand Mr Clews was suspended last week, while a council disciplinary process is underway. Neither he nor his union making a comment.
But Mr Clews has said in the past that he did all he could, but that Daniel's mum and stepdad were accomplished liars.
Various professionals, including some working at Daniel's school were criticised in a recent report after his death.
Murdered toddler Daniel Pelka came in contact with a number of professionals who either noticed or treated him for injuries, or saw changes in his weight before his death in March 2012.
The Serious Case Review found there were a number of opportunities to protect Daniel that were missed.
The former headteacher of the school toddler Daniel Pelka attended has been suspended from his new job.
Darren Clews was the head of Little Heath Primary School when the four-year-old was tortured and murdered by his mother and step-father.
Mr Clews has since left Little Heath and has been suspended from his current school Grangehurst Primary and disciplinary proceedings are underway.
His mother Magdelena Luczak and her partner Mariusz Krezolek were both jailed for a minimum of 30 years.
A children's services boss who was criticised for failings by his former council over murdered schoolboy Daniel Pelka has stepped down from his new child protection post.
Tower Hamlets Council said Colin Green had withdrawn as chairman of the Local Safeguarding Children Board "with immediate effect".
He had taken the role after retiring as Coventry City Council's director of children's services last month following revelations about failings by his department over the boy's death.