David Cameron’s father-in-law has described feeling depressed and anxious after he was robbed in the grounds of his private estate in north Lincolnshire. Sir Reginald Sheffield was ambushed by three men on his 300-acre Normanby Hall estate in Flixborough on 14 April. On Wednesday a 25-year-old man was jailed for 18 months for stealing Sheffield’s phone during the incident. Antony Wilks trespassed on to the estate with two other men and wrestled an iPhone 8 out of Sheffield’s hand, Grimsby crown court was told. Jeremy Evans, prosecuting, said Sheffield, who is Samantha Cameron’s father approached the trespassers and raised his phone to take pictures of them, and Wilks snatched it from his hand after a short struggle. Evans said: “The defendant reached in and has taken control of his [Sheffield’s] left forearm … in an attempt to pull the iPhone. There was a struggle for a matter of seconds. The complainant was to say he felt a mixture of anger and fear as he tried to push the defendant away.” Dashcam footage taken from Sheffield’s car did not capture the physical altercation, although Wilks could be heard swearing at the complainant, who was audibly distressed by the ordeal. Evans said Wilks was arrested within a short period of time after police followed a track-and-trace device installed on the phone. The prosecutor read excerpts from a victim impact statement in which Sheffield said the incident had left him depressed and feeling anxious. Wilks spoke only to confirm his guilty plea during the hour-long hearing. Jailing him, the judge Mark Bury said: “You and others were on private land. The complainant who owns the land, Sir Reginald Sheffield, was 74 years old. “He had every right to ask you what you were doing on his land because you were trespassing. And he had every right to record you, if in fact that’s what he was doing. You snatched the phone out of his hand after a short struggle. You were trespassing on this property and you had no right to be there, you had no right to behave in this way.” Gordon Stables, mitigating, said Wilks, who had 32 previous convictions, wanted to express his remorse over the incident. “He wishes now of course that he hadn’t taken the phone.”