Court battle: Lord Janner's alleged victims could sue him for £2.5million after the CPS dropped a prosecution against him for the fourth time . Lord Janner's alleged victims could sue him for £2.5million after being denied justice for the fourth time in 25 years when the CPS refused to prosecute him. Police have identified 25 people who claim the Labour peer attacked them and each could claim for up to £100,000. One man, allegedly attacked by Janner when he was living in a  children's homes between 1981 and 1988, has already instructed lawyers to sue him and Leicestershire County Council for damages. His solicitor Peter Garsden, president of the Association of Child Abuse Lawyers, has said that after a string of bungled investigations suing 'may be the only way the alleged victims are going to get some sort of justice'. Several of those who claim to have been sexually abused say Janner got to them through paedophile Frank Beck, a manager of Leicester children's homes accused of abusing more than 200 boys. The CPS last week said the 'core allegation' was that Lord Janner befriended Beck to access children 'to allow him to perpetrate serious sexual offences' on them. Beck died in jail in 1994. Mr Garsden said: 'We are preparing a claim for this man against Lord Janner and Leicestershire County Council. 'The allegations involved the most extreme abuse. Our case is that Frank Beck was running the home where this man was introduced to Greville Janner. 'Perhaps this is the only way the alleged victims in this case are going to get some sort of justice.' A compensation scheme for Jimmy Savile's dozens of victims was agreed at the High Court last year where those abused were paid out of his £3.3million estate. Last seen: Channel 4 News filmed Lord Jenner outside his house in London on July 8 2014, when he was last seen in public . Test cases: Victims abused by Jimmy Savile and Liberal MP Cyril Smith also sued after they were denied justice . Liz Dux, whose law firm Slater & Gordon respresents 168 of Jimmy Savile's victims and 10 of former Liberal MP for Rochdale Cyril Smith, says that Janner's alleged victims could be handed £100,000 each. Campaigners, police chiefs and MPs have accused Alison Saunders, the director of the CPS (above), of ignoring the rights of victims . Director of Public Prosecutions Alison Saunders, who made the decision not to prosecute Lord Janner, claimed £13,400 in expenses last year including almost £7,000 on business-class flights. Her most recently published expenses show she flew business class to Washington, Dubai and New York in the year that the CPS was forced to cut its budget by 27 per cent. Mrs Saunders, pictured, has been heavily criticised in recent weeks over corruption charges against journalists and deciding not to prosecute Lord Janner over alleged sex offences. The publicly funded trips included one to the Caribbean for an ‘official meeting’ last September which cost the taxpayer £3,105 for hotels and flights. A CPS spokesman said: ‘The DPP’s travel overseas helps the CPS to join forces with other countries so we can reduce serious crime both in the UK and around the world.’ The CPS said the DPP travels standard fares unless there is a long-haul trip and a requirement to work immediately at the other end. Mrs Saunders, who earns £200,000 a year, charged the taxpayer £102 for one taxi journey. The CPS said they have strict rules on when taxis should be used, including when heavy baggage has to be carried or when there are no other suitable methods of transportation. She said: 'If the victims of Lord Janner are successful, damages could be sizeable. 'Civil redress is the next logical step after the CPS decision.' Lord Janner's family has said he is 'entirely innocent of any wrongdoing' and 'is a man of great integrity'. A Leicestershire County Council spokesman said: 'We have been co-operating with the police on aspects of their investigation that relate to historic abuse involving the former county council children's homes in the 1970s and 1980s. 'Since then, the council has introduced a series of safeguards and procedures to minimise the chances of this kind of abuse from happening again. All relevant documents have been provided to the police. 'We have not been approached so far regarding compensation claims and so cannot comment further at this time.' The CPS ruled last Thursday that there was enough evidence to charge him with 22 sexual offences against children dating from 1969 to 1988. However, Director of Public Prosecutions Alison Saunders said he would not be prosecuted because his deteriorating dementia means there could be no criminal conviction. She spoke of her 'deep regret' as she announced that Lord Janner will not face trial and admitted he should have been charged three times before in 1991, 2002 and 2007 but was left off the hook. Last night it emerged that Lord Janner signed a letter saying he wanted to remain a peer just a week before he was ruled unfit to face child sex charges. Abuse campaigners last night angrily questioned why the suspected paedophile was able to remain in the House of Lords if he was too frail to be brought before court. Leicestershire Police, who disagree with the decision not to charge Janner having investigated him for the past two years, have admitted they may contact the House of Lords about the letter. MailOnline revealed yesterday that at least 19 men with dementia have been convicted of child sex offences since 2010, including ten in the past year. Signed: Dementia sufferer Lord Janner signed a letter on April 9, just a week after he was deemed unfit to stand trial. His signature has been redacted for privacy reasons .
Man allegedly abused in children's home has already instructed lawyers .
His solicitor says suing could be 'only way to get some sort of justice'
Police identified 25 men allegedly abused by peer but case was dropped .
CPS boss Alison Saunders said Janner is unfit to plead due to dementia .
But the CPS has pursued other suspected paedophiles with illness .