Allegations of child sex abuse are first made against Lord Janner in 1991 during the trial of convicted paedophile Frank Beck, but have persistently dogged the Labour Peer since then

June 1970 Greville Janner, a qualified barrister, successfully wins the seat of Leicester North West for Labour and enters the House of Commons aged 41.

1973 Frank Beck, a former Royal Marine turned social worker is appointed officer in charge of several children’s homes in Leicestershire.

1983 Beck is acquitted of physically abusing a boy in his care at The Beeches children’s home in Leicestershire.

March 1986 Beck is suspended and eventually resigns after two male social workers make allegations of sexual abuse against him.

1989 A former resident of one of Beck’s children’s homes makes allegations of abuse and a major inquiry is launched.

April 1990 Beck is arrested and charged in connection with allegations of sexual misconduct in Leicestershire’s children’s homes in the 1970s and 1980s.

1991 Leicestershire Police investigates allegations that Janner was also responsible for abuse in Leicester. He is questioned by appointment.

August 1991 Beck goes on trial charged with abusing more than 100 children in his care, but during the case claims he had intervened to prevent Janner from abusing and buggering a child at one of the homes.

November 1991 A former children’s home resident gives evidence at the trial in which he claims Janner regularly abused him.

November 1991 Beck is convicted of a string of child abuse and rape charges and is sentenced to five life terms.

December 1991 Janner uses a speech in the House of Commons to vehemently deny the allegations made against him by Beck and Winston and is supported by a number of colleagues from all sides of the House some of whom call for a change in the law to protect the reputation of those accused of such crimes.

December 1991 The Crown Prosecution Service announces no further action is to be taken against Janner over the allegations.

May 1997 Steps down as an MP and is ennobled as a Life Peer taking the title Baron Janner of Braunstone.

2002 An alleged victim gives evidence to Leicester Police claiming he was abused by Janner. The evidence is never passed to the CPS for consideration.

2006 Another alleged victim comes forward claiming to have been abused by three people, one of whom was Janner. The evidence is passed to the CPS for consideration.

2007 The CPS decides there is insufficient evidence to prosecute.

January 2013 Operation Enamel is established by Leicestershire Police and more than a dozen allegations are made against Janner.

December 2013 Police search Janner’s home as part of the investigation.

March 2014 Police search Janner’s Westminster offices.

April 2015 CPS announce it is not in the public interest to prosecute Janner despite there being enough evidence to proceed. DPP Alison Saunders announces his severe dementia means he would not be fit to stand trial.

May 2015 An external QC is appointed to review the decision.

June 2015 CPS due to publish conclusions of the review, expected to contradict Mrs Saunders' earlier decision and recommend a "trial of the facts".