A career criminal responsible for a spree of high-end vehicle thefts across Bexley, Bromley, and Greenwich has been sentenced to four years and ten months in prison. Thomas Siggers, 30, from Sidcup, used sophisticated keyless entry technology to steal at least eight luxury vehicles between October and January, despite being fitted with an ankle tag tracking his movements 24/7.
Among the vehicles stolen were Land Rovers, Range Rovers, and Lexus models, many valued at over £20,000. One victim, a woman from Bexley, described feeling “emotionally violated” after witnessing the theft of her £40,000 Land Rover from her driveway. The vehicle was found six days later in a damaged state, with her 93-year-old mother’s wheelchair missing.
In another case, a stolen car linked to Siggers was later used in a shooting incident in Woolwich. Although Siggers was one of four men accused of attempting to execute a man outside his home, a jury found him not guilty of attempted murder. He claimed he was unaware of the gun and believed the plan was to steal, not kill.
Siggers was also implicated in an incident where an off-duty police officer was threatened with machetes. On January 7, the officer was boxed in by a black Land Rover while sitting in his Audi in a car park on Timbercroft Lane, Woolwich. Two men armed with machetes, though not Siggers himself, exited the vehicle. The officer flashed his warrant card, scaring off the masked men.
Despite Siggers’ criminal background, which includes 53 convictions primarily for theft and burglary, his defense lawyer Charles Langley argued that Siggers wanted to turn his life around following the birth of his son. Langley noted that Siggers had even saved the life of a fellow inmate who attempted suicide and remained supported by his family, including his partner.
However, Judge Christopher Grout expressed skepticism about Siggers’ claimed remorse. He described the thefts as part of a “planned and sophisticated operation” and emphasized that Siggers played a leading role in the crimes, often using jamming devices to disable security cameras before stealing the cars. In one instance, Siggers was seen disabling a woman’s Ring doorbell camera before stealing her car.
“It is very difficult to accept that you are truly remorseful for what you have done,” Judge Grout said during sentencing at Woolwich Crown Court on Friday, September 6.
Siggers pleaded guilty to charges of conspiracy to steal motor vehicles, vehicle interference, affray, and theft from a motor vehicle. His GPS ankle tag had placed him at the scenes of all eight thefts and other incidents involving car break-ins or damage. This included the confrontation with the off-duty police officer.
Siggers has a long history of criminal activity, including a 2017 conviction for burgling his own grandparents’ home while they were away celebrating their wedding anniversary. Most recently, he was jailed in 2020 for 11 burglaries, serving three and a half years before being released on licence—only to return to crime.
Despite Siggers’ insistence that he plans to move away from the area and turn his life around, Judge Grout concluded, “No matter how the court deals with you, you continue to offend.”
