Since Gareth Williams's death, questions have inevitably been asked about whether the secret services could have played any part.
The clandestine activities of MI6 were raised again as the spy's family lawyer probed the possibility that his computer was tampered with.
The electronic equipment was handed to Scotland Yard's counter-terrorism command, SO15, on August 27, 2010 - four days after Mr Williams's death came to light, the inquest heard.
Superintendent Michael Broster, who was responsible for SO15's involvement in the investigation, gave little credit to the theory of MI6 interference, insisting Mr Williams's workplace had been "sealed and taped".
He went on: "I can't testify absolutely it wasn't interfered with. However I've no reason to suspect that it was."
He also told the court he had failed to detect any link between Mr Williams's work and his death.
"There's no link between his work and his death that I've been privy to," he said.
Gareth Williams was found in a padlocked holdall in his bathroom in 2010. An inquest has been opened to try and finally decipher the cause of his death and the events leading up to it.
The inquest heard earlier on Wednesday from the former landlady of Williams and also a personal friend on the details of his personal life.