The Transportation in Canada Safety Commission announced on the 24th that it had launched an investigation into the accident of the Titan deep-sea Submersible and hoped to cooperate with other agencies in this regard. According to media expectations, the investigation will be very complex and may take 18 months to two years. Kathy Fox, the chairman of the Transportation in Canada Safety Committee, said on the same day that, in view of the fact that the Polar Prince, which towed the Titan to the incident area, was off the coast of a Canadian port and hung the Flag of Canada, although the accident occurred in international waters, the Committee would conduct a safety investigation on the accident, and "other agencies can choose whether to conduct another investigation". Fox said that the recordings and witness statements are protected by Law of Canada, and the Commission will share the collected information with the National Transportation Safety Board and the Coast Guard and other agencies within the scope of existing laws. Our task is to determine what happened and the reasons behind it, and determine what changes need to be made in the future to reduce the risk of such accidents, "Fox said, questioning other passengers on the Polar Prince, including the families of the victims. "The investigation will follow the direction of evidence. We don't want to repeat our work and want to cooperate." According to Agence France Presse, the Transportation in Canada Traffic Safety Committee is responsible for investigating aviation, railway, maritime and pipeline accidents with the purpose of improving traffic safety. It has no right to determine the fault party or divide civil and criminal liabilities. According to the US New York Times, the United States Coast Guard is responsible for recycling and inspecting the Titan wreckage, while the Transportation in Canada Traffic Safety Commission will analyze the US findings. According to Agence France Presse, the investigation may take 18 months to two years. On the 16th of this month, the "Polar Prince" towed the "Titan" from St. John's, Newfoundland, Canada, to a survey point in the North Atlantic waters about 700 kilometers south of St. John. At that time, there were a total of 41 people on the Polar Prince, including 17 crew members and 24 passengers, including 5 passengers on the Titan. The five people originally planned to take the Titan and dive to over 3800 meters underwater to investigate the wreckage of the Titanic, but lost contact about 1 hour and 45 minutes after diving on the 18th. After a large number of rescue workers searched for several days, John Major, spokesman of the United States Coast Guard, announced on the 22nd that it was confirmed that the Titan had disintegrated underwater, which was characterized by a "catastrophic implosion", and all five passengers were killed. According to the Associated Press, the Royal Canadian Mounted Police announced on the 24th that they have conducted a preliminary assessment of the accident to determine whether to initiate an investigation. A formal case filing investigation requires sufficient evidence to show that the accident may be a criminal case and that someone is suspected of violating Law of Canada. The reporter of the New York Times saw at the scene that the Polar Prince returned to its home port in St. John on the morning of the 24th. A few hours later, more than 10 people including investigators from the Transportation in Canada Safety Commission and the Royal Mounted Police came and went out of the ship. Due to the involvement of multiple countries in the accident and the lack of regulation in the deep-sea diving industry itself, the investigation materials will be complex. Major once said on the 22nd that doubts about the applicable norms and standards in the industry are believed to be the focus of future reviews. According to the Associated Press, the question of when an implosion occurred has at least been partially resolved. The US Navy analyzed the sound data of the Titan after its loss of contact