A mother has successfully sued police for wrongful arrest after being handcuffed in front of her Down 's syndrome daughter over false claims she left her alone outside for 45 minutes . Valerie Cadman-Khan was left 'humiliated ' when officers led her away from her Middlesbrough home in front of her crying daughter Aimee . Cleveland Police accused the 56-year-old of negligent behaviour , claiming she left the child alone for 45 minutes in the garden . Valerie Cadman-Khan has successfully sued Cleveland Police for wrongful arrest after being handcuffed in front of her daughter Aimee when she was 12 . The 56-year-old was led away from her former boyfriend 's house in front of her daughter amid false claims Aimee , who has Down 's syndrome , had been left alone for 45 minutes in the cold . Middlesbrough County Court heard how officer Detective Sergeant Colin Helyer lied to the local authority child abuse investigation to justify arresting the mother of five . On the day in question in November 2008 , he had been called to her former partner 's home over an unpaid tax bill . Aimee had been left in the man 's care and was sitting outside when police arrived . Mrs Cadman Khan was at work . But the police officer began 'banging ' on the front door and later claimed the child had turned 'purple ' because she was not wearing a coat . Upon her arrival at the property Mrs Cadman-Khan , who left work early because she was not feeling well , was arrested and taken away by police . Detective Sergeant Colin Helyer was accused of 'freestyle lying ' in his version of events . Aimee was forced to watch the incident , all the while screaming : ' I want my mummy , ' she claimed . Her mother launched a wrongful arrest suit and has won her case against the force . Her claim for £34,000 in compensation will be assessed at a later date . Speaking of her ordeal the teacher , who works for the council at East Coast Training , a pupil referral centre , said : 'It was never about the money - it was about clearing my name after the injustice to me and my little girl . 'This should never have come to court , I only wanted an apology . 'All I could hear was my little girl shouting `` I want my mummy , I want my mummy '' . 'It was horrendous . ' After arresting Mrs Cadman-Khan on suspicion of child neglect , Det Sgt Helyer 'lied under oath ' to claim Aimee had been mistreated , the court heard . 'He falsely asserted that Aimee had been purple and suggested the client had been violent to him , ' Nick Stanage , barrister for Mrs Cadman-Khan said . 'Sadly this was a witness that even when caught in a lie by the court he was unwilling to be honest about it . ' 'For a woman of good character from that profession to be arrested and accused of allegations of child neglect and cruelty is of the utmost seriousness . ' He denied maliciously arresting the mother of five , insisting that all of his actions were in Aimee 's best interest . 'In the balance of probability it was more likely Sgt Helyer overreacted and was led by his concerns for Aimee , ' said Nathan Adams representing Cleveland Police . 'He accepted in evidence he lost his temper and was banging on the door . He was concerned for the mental and physical wellbeing of Aimee . ' Judge Gillian Matthews QC however told the court the sergeant had been 'freestyle lying ' in his accounts . 'One of your problems is the witness has lied . He was prepared to mislead the court in what I call freestyle lying , ' she said . The force will apologise pending her judgment on suitable reward , Mr Adams added . Mrs Cadman-Khan was left 'humiliated ' by the ordeal throughout which Aimee , now 18 , could be heard screaming : ' I want my mummy ' The mother of five has successfully sued Cleveland Police . The force said it will apologise when the judge has ruled on a reward .
Valerie Cadman-Khan was left 'humiliated ' when she was arrested in 2008 . She had left Aimee , then 12 , at boyfriend 's house while she was at work . The girl told police that her mother and stepfather were angry with the pair for not paying their rent on time - but they denied it.