The past couple weeks have seen some long days for investigators with the RCMP. Over 5,500 photos and 50 interviews have been conducted, and more is to come, as they work to get to the bottom of what exactly happened to the Humboldt Broncos bus that fateful Friday night two weeks ago.

Drones and 3D technology have been among the tools utilized for them to gather evidence and analyze every aspect of the scene at the intersection of Highways 35 and 335.

According to RCMP Assistant Commissioner Curtis Zablocki in a Thursday morning press conference, "There's still a lot of work to be done on interpreting and analyzing all of the information gathered."

Both the bus and the semi have been mechanically inspected and the results are pending. The engine control modules from each unit were sent to California for expert study.

Documents, including the driver logs and other mechanical and safety related records, are being reviewed. Items such as rest time, brake checks and safety standard compliance will be looked at.

They closed the site of the crash down once again for the day on Thursday in order to continue the investigation, which includes reenacting the incident.

"Complex collision reconstruction investigations take time and are often measured in weeks and months, rather than days," said Zablocki.

The go fund me account set up by a Humboldt resident closed midnight on Wednesday, with final total of $15 million having been donated from around the world.