MI6 is apparently being associated with the former SAS sniper, known as Soldier N, who had claimed that the elite troops were involved in the Paris car crash that killed Princess Diana, her beau Dodi Fayed and driver Henri Paul.
According to the Daily Express, Soldier N is seeking advice regarding the case from a lawyer, who is a serving member of Britain's Secret Intelligence Service.
The publication claimed that the advocate joined the world of spying as a legal adviser based at MI6 headquarters in London.
Earlier, a potential MI6 association was revealed in an Army probe that led to the court-martial of Soldier N and fellow SAS sniper, Danny Nightingale, for unlawful possession of weapons and ammunition.
The investigators had discovered two Glock pistols at the house the duo shared in Hereford, which were alleged to be presents given to them from Iraqi Special Forces that had completed training courses facilitated by the SAS.
But, it has now emerged that among the Iraqis were MI6 agents recruited to spy for Britain.