Italian requests for phone records relating to the death of Cambridge PhD student Giulio Regeni have been rejected by Egypt.
A senior Egyptian prosecutor said on Saturday that handing them over would “violate the country’s constitution.”
Twenty eight-year-old Regeni was in Cairo on a field study trip in January when he disappeared. His mutilated and tortured body turned up nine days later at the side of a road.
Egyptian authorities have changed their story several times but say Regeni was abducted by a criminal gang.
His family believe he was targeted by the Egyptian intelligence services because of his doctoral research on trade unions.
Egypt’s security agencies have a brutal record and under the current government, arbitrary arrest and torture has increased. Almost 500 people were killed by Egypt's security forces in 2015, according to Cairo-based human rights group Nadeem Center.
On Friday, Italy recalled its ambassador to Egypt.
Pressure is growing on Egyptian authorities to reveal the truth behind the death of Giulio Regeni.
A petition for the UK government to ensure a full investigation of Giulio Regeni's death has reached almost ten thousand signatures. Any petition which reaches ten thousand is supposed to receive a response from the government. Regeni had lived in the UK since he was 18.