Answer the question at the end by quoting:

The Electric Light Orchestra (ELO) are an English rock band formed in Birmingham in 1970, by songwriters/multi-instrumentalists Jeff Lynne and Roy Wood with drummer Bev Bevan. Their music is characterised by a fusion of Beatlesque pop, classical arrangements, and futuristic iconography. After Wood's departure in 1972, Lynne became the band's leader, arranging and producing every album while writing virtually all of their original material. For their initial tenure, Lynne, Bevan and keyboardist Richard Tandy were the group's only consistent members.
For the next six years, Harvest and Epic/Legacy reissued ELO's back catalogue. Included amongst the remastered album tracks were unreleased songs and outtakes, including two new singles. The first was "Surrender" which registered on the lower end of the UK Singles Chart at number 81, some 30 years after it was written in 1976. The other single was "Latitude 88 North".  On 9 August 2010, Eagle Rock Entertainment released Live - The Early Years in the UK as a DVD compilation that included Fusion - Live in London (1976) along with never before released live performances at Brunel University (1973) and on a German TV show Rockpalast (1974). The US had a slightly edited release on 24 August 2010. The Essential Electric Light Orchestra artwork was re-jigged to feature two different covers. The US and Australian releases shared one design, while the rest of the world featured the other for a new double album release in October 2011.  Mr. Blue Sky: The Very Best of Electric Light Orchestra was released on 8 October 2012. It is an album of new recordings of ELO's greatest hits by Lynne; along with a new song "Point of No Return", released to coincide with Lynne's second solo album release Long Wave. These new 2012 albums contained advertisement cards, announcing the re-release of expanded and remastered versions of both the 2001 album Zoom and Lynne's debut solo album Armchair Theatre, originally released in 1990. Both albums were re-released in April 2013 with various bonus tracks. Also released was the live album, Electric Light Orchestra Live, showcasing songs from the Zoom tour. All three releases also featured new studio recordings as bonus tracks.  Lynne and Tandy reunited again on 12 November 2013 to perform, under the name Jeff Lynne and Friends, "Livin' Thing" and "Mr Blue Sky" at the Children in Need Rocks concert at Hammersmith Eventim Apollo, London. The backing orchestra was the BBC Concert Orchestra, with Chereene Allen on lead violin.

What was included in this catalogue?

Included amongst the remastered album tracks were unreleased songs and outtakes, including two new singles. The first was "Surrender"

IN: Sutcliffe was born in Bingley in the West Riding of Yorkshire to a working-class family. He was given a Catholic upbringing by his parents, John William Sutcliffe and his wife Kathleen Frances (nee Coonan). Reportedly a loner, he left school aged fifteen and had a series of menial jobs, including two stints as a gravedigger in the 1960s. Between November 1971 and April 1973, Sutcliffe worked at the Baird Television factory on a packaging line.

West Yorkshire Police were criticised for being inadequately prepared for an investigation on this scale. It was one of the largest investigations by a British police force and predated the use of computers. Information on suspects was stored on handwritten index cards. Aside from difficulties in storing and accessing the paperwork (the floor of the incident room was reinforced to cope with the weight of the paper), it was difficult for officers to overcome the information overload of such a large manual system. Sutcliffe was interviewed nine times, but all information the police had about the case was stored in paper form, making cross-referencing difficult, compounded by television appeals for information which generated thousands more documents.  Assistant Chief Constable George Oldfield was criticised for being too focused on a hoax confessional tape that seemed to indicate a perpetrator with a Wearside background, and for ignoring advice from survivors of Sutcliffe's attacks, and several eminent specialists including the FBI, plus dialect analysts such as Stanley Ellis and Jack Windsor Lewis, whom he had also consulted throughout the manhunt, that "Wearside Jack" was a blatant hoaxer. The investigation used it as a point of elimination rather than a line of enquiry and allowed Sutcliffe to avoid scrutiny, as he did not fit the profile of the sender of the tape or letters. The "Wearside Jack" hoaxer was given unusual credibility when analysis of saliva on the envelopes he sent showed he had the same blood group as the Yorkshire Ripper had left at crime scenes, a type shared by only 6% of the population. The hoaxer appeared to know details of the murders which had not been released to the press, but which in fact he had acquired from his local newspaper and pub gossip. The official response to the criticisms led to the implementation of the forerunner of the Home Office Large Major Enquiry System, the development of the Major Incident Computer Application (MICA), developed between West Yorkshire Police and ISIS Computer Services.  In response to the police reaction to the murders, the Leeds Revolutionary Feminist Group organised a number of 'Reclaim the Night' marches. The group and other feminists had criticised the police for victim-blaming, especially the suggestion that women should remain indoors at night. Eleven marches in various towns across the United Kingdom took place on the night of 12 November 1977. They made the point that women should be able to walk anywhere without restriction and that they should not be blamed for men's violence.  In 1988, the mother of Sutcliffe's last victim, Jacqueline Hill, during action for damages on behalf of her daughter's estate, argued in the High Court that the police had failed to use reasonable care in apprehending the murderer of her daughter in Hill v Chief Constable of West Yorkshire. The House of Lords held that the Chief Constable of West Yorkshire did not owe a duty of care to the victim due to the lack of proximity and therefore failing on the second limb of the Caparo test.

What else did the Police struggle with

OUT:
it was difficult for officers to overcome the information overload of such a large manual system.