Afterwards, Newall, 28, made a second visit to the wooded area of the island where police have been digging for his parents' bodies since Saturday. A police spokesman said: 'I can confirm that Roderick Newall has returned to the site with his legal adviser and is further assisting police with their inquiries in their efforts to trace the bodies of his parents.' The search was called off last night and will resume today.
Newall is accused of murdering Nicholas and Elizabeth Newall with his younger brother, Mark, in 1987. Newall's advocate, David Le Quesne, submitted the pleas of guilty to both murders for his client. Newall was remanded in custody for 28 days.
In May, Newall's brother, Mark, 27, who is being held at the island's prison, formally entered pleas of not guilty to both murders.
Roderick Newall was extradited to Jersey from Gibraltar on Saturday. He was arrested at sea off the coast of Morocco in August last year. Mark Newall, a financier, was extradited from France in April.
The trial is due to take place on 6 December.