- guardian.co.uk, Wednesday 5 January 2000 01.27 GMT
The party hierarchy hopes the move will end a damaging internal row over how their rival for Labour's nomination for London's mayor, Frank Dobson, obtained details last October to send out letters seeking support.
The Euro MP Richard Balfe, who admitted securing the list for Mr Dobson, is to make copies available to the former health secretary's opponents.
Mr Livingstone and Ms Jackson complained that they had been put at a disadvantage by being prevented from mailing members who make up one third of the party's electoral college.
The pair will now come under pressure to drop complaints against Mr Dobson's campaign, but the data protection registrar could press ahead with an investigation.
The Dobson team is accused of not having a licence to possess the names, and of obtaining them unfairly.
Mr Dobson put pressure on Labour's Millbank HQ to make the names available to his rivals after realising the row was damaging his campaign.
Senior party figures had previously claimed a copy could not be handed over to Mr Livingstone because he was backed by far left groups who might misuse it.
Mr Livingstone, the former leader of the old Greater London council, accused his critics of smear tactics.
He said that his surveys showed he was on course for victory next month.
A supporter of Mr Dobson, Tony Blair's favoured candidate, said: "Hopefully this will draw a line under the controversy over membership lists.
"What counts is who will be the best mayor, and Ken and Glenda have got away scrutiny-free so far."
