Opening the Crown’s case at the start of a retrial which began in December, David Mason QC said the CCTV system was not working at the home of Singh, whose first wife, Amandeep Kaur, died in India four years before the murder.
Mr Mason told the jury: “Although his own CCTV was disabled, he wasn’t to know that a house opposite his house had CCTV covering that house’s drive.
“It also just so happened to cover the front, or at least a good part of the front of this defendant’s house.
“What it also showed is that, a few minutes after Gurpreet Singh got home … an unknown person, who was wearing a parka with the hood up, approached his house and the gates which allowed access to the driveway and the house itself.