A civil engineer from Crans-Montana is under investigation as part of the ongoing probe into the fire at the Constellation bar. The engineer’s name appears on construction plans for an expansion of the bar’s terrace, dated December 18, 2025—just weeks before the fire occurred. However, the engineer has denied any involvement in validating those plans. He stated he was not asked to approve the project and only learned of the plans when a Swiss newspaper contacted him during the judicial investigation. He claims that the head of the construction service in Crans-Montana added his name to the documents without consulting him, likely to speed up the process. The engineer was also mentioned in a hearing by the former owner of the Constellation bar, who is not Jacques Moretti. This individual claimed that the engineer had validated work involving drilling into a load-bearing wall during a 2015 renovation of the bar. The engineer denied this, saying he has no records in his office that support such involvement. This discrepancy has added to the complexity of the investigation, as it raises questions about the validity of the construction practices used at the bar. The head of the construction service in Crans-Montana is now facing legal charges for negligence in fire, negligent homicide, and serious bodily injuries due to negligence. He is being prosecuted alongside 16 other individuals, including the Moretti couple, who are also under investigation. While the terrace extension project and the drilling of the load-bearing wall are not directly linked to the fire, the unregulated nature of these practices has raised concerns among legal observers. Some have pointed to the canton’s history of regulatory laxity, often described as “sulfurous,” when discussing the case. The investigation is ongoing, with hearings expected to continue in the coming weeks. Jessica and Jacques Moretti are set to be questioned again on November 2nd and December 2nd. As the legal proceedings progress, more details about the fire’s causes and the roles of those involved are likely to emerge.