The Conservative Party has been accused of erasing from the internet all evidence of speeches and press releases issued before the last election.
On Wednesday, Computer Weekly reported that a 10-year backlog of material dating from before 2010 had been removed from the party website. It was also claimed the material had been made inaccessible from search engines at some point after October 5.
According to the tech website, the speeches and press releases were also no longer visible on the Internet Archive site - which records information published online.
A Conservative Party spokesman said: “We’re making sure our website keeps the Conservative Party at the forefront of political campaigning. These changes allow people to quickly and easily access the most important information we provide – how we are clearing up Labour’s economic mess, taking the difficult decisions and standing up for hardworking people."
Removing the text of speeches made by David Cameron and other senior Tories before 2010 makes it harder for voters and journalists to compare pre-election pledges with the government's current policies.
In 2011, Cameron said transparency was "at the heart" of his public services agenda. "Information is power because it allows people to hold the powerful to account," he said.
Labour MP Sheila Gilmore said: “The Tories are trying to hide from their own broken promises and failed policy. Rather than owning up to the mess they’re making of the economy and fixing it, they are pretending it hasn’t happened."
"This cynical stunt won’t fool any family suffering from a cost of living crisis. With hardworking people over £1,600 a year worse off under him, it will take more than David Cameron pressing 'delete' to make people forget about his broken promises and failure to stand up for anyone beyond a privileged few."