The Space Time Manipulator originally came from a “Fallen Angel” which crash landed in Canada.
“Fallen Angel” is a codename used by the department for any alien spaceships they discover.Professor Gryffen was assigned to work on the STM to try and get it working again for the Department. Gryffen wanted to get it working so that he could bring back his lost family. During the first test run, four Jixen warriors came through the portal along with K9 Mark I.
The temporal stabiliser is currently missing from the STM, this is the only thing preventing it from working properly. When the department brought back the STM from the “Fallen Angel” it was the only thing they couldn’t find.