Judge John Saunders began summing up at the trial of former News of the World editors Rebekah Brooks and Andy Coulson, and five others, on charges related to wrongdoing at Murdoch's British tabloids. All the defendants deny the charges.
The jury will retire to consider its verdicts in the next few days, after more than seven months of testimony and argument at London's Central Criminal Court.
Murdoch shut down the News of the World in 2011 after evidence emerged that its staff had eavesdropped on the voicemails of celebrities, politicians and crime victims.
The scandal soon ensnared the media, police and political establishments in Britain, where Murdoch's newspapers wield substantial political clout. Brooks was a friend of Prime Minister David Cameron and Coulson was the prime minister's communications director for several years.
"Respect their success, but everyone is subject to the law of the land and no one is so powerful they can ignore the law," the judge said.
"If there have been wild theories, ignore them," he said. "If there has been gloss and packaging, cut through it. ... Everyone is equal before the court.