Lawyers representing Fr Richard Reardon, a priest and prison chaplain from the Archdiocese of Cardiff, say that they have sufficient evidence to prove that investigators working for the news organisation had hacked into the priest's voicemail.
Notebooks belonging to Glenn Mulcaire, a private investigator at News Corporation who was jailed in 2007 for illegally accessing mobile-phone messages, reveal that he had listed Fr Reardon as one of a group of "family and friends" connected to the singer.
Charlotte Church accepted £600,000 compensation from News International earlier this year. She said that the now-defunct newspaper the News of the World had "harassed" her family.