The volume constitutes evidence presented to the committee appointed to look into the state of English jails in April 1730. Edward Hughes was chairman at the time. John Campbell and Frank Harbin, the committee's solicitor, gathered witnesses who swore that Lord Chief Justice Robert Eyre visited Thomas Bambridge while he was a prisoner in Newgate Prison and funded him. Eyre had presided over Bambridge's first trial for the murder of Robert Castell, a prisoner at Fleet Prison when Bambridge was warden, in May 1729, at which Bambridge was acquitted. Witnesses claimed that Eyre should not have sat on Bambridge's case because of this conflict of interest. Witnesses also stated that Bambridge, Thomas West, and another man named Beatniff tried to frighten one of them into saying that Campbell paid him for false testimony. Other witnesses contradicted this testimony and implicated Hughes in a conspiracy against Eyre.

Bambridge was tried again for the murder of Castell in 1730 and was again acquitted. He was later prosecuted at the suit of John Huggins and was imprisoned at Fleet, where he had been warden. The Bambridge case was the subject of one of painter William Hogarth's early pictures.

This volume of evidence and testimony includes 5 letters to Edward Hughes from John Campbell, under cover to James Oglethorpe, dating from October-December 1729, as well as one letter to Frank Harbin from Campbell, dated Febrary 2, 1730. These letters offered to betray Bambridge and his powerful supporter. The volume also includes copies of testimony presented to the committee from April 20-24, 1730 from Anna Jones, James Brown, John Campbell, Loggan Sandys, and Roger Johnson. There are also verbatim question and answer minutes from evidence presented before the committee, involving Richard Ackerman Turkney, Thomas Osborne, Bell Anna Alinda Birnie, Mrs. Offley Crew Hawkins, the Reverend Henry Smith (rector at Weybridge), Roger Johnson, Elizabeth Smith, Thomas Smith, turnkey Thomas Langley, attorney George Welland, victualler Joseph Brewer, solicitor to the Customs George Metcalfe, prisoner Elizabeth Haynes, and James Fitzgerald. There is a note included amongst these minutes regarding a letter written by Hughes that Sir Robert Walpole shared with the committee. There is a pasted-in draft of account of the committee's actions after hearing the evidence, with motions that the attack on Eyre was a conspiracy and an unfinished defense by Hughes, for himself. The volume also includes two appendices, a letter from B. Birnie to James Oglethorpe written April 23, 1730 and unfinished queries for Mrs. Birnie.

These items are on the first 110 pages of the volume, the rest of the volume is blank.