Looks like someone in government (possibly cabinet-level) may have been involved some illegal influence peddling, or even some other abuse of power:
http://www.cbc.ca/news/canada/saskatchew...ian-rick-swenson-land-taxpayer-1.3422140
tl;dr: Basically, the government normally expropriates land for the bypasses. In this case, it was sold to a guy from Alberta (which looks legit, possibly), and then to a guy from Regina, and then to the GTH, each time for 2-3x markup on the old valuation. The GTH bought it at the request of the government, though no one can be found who ordered it, or why the GTH would even buy land to then give to the government, rather than have the government just expropriate it. The original expropriation price was around $11,000/acre, and eventually the GTH bought it for the government at over $105,000/acre. Then, the GTH sold it to the government for only $50,000/acre!
Looks to me like someone in government has a friend (or an interest themselves) who needed some money, so they had the land change hands a few times before the government got it for 10x the price it could have (or 3x, at later valuations). Very suspicious. If it's the way it looks, then jail time is the right answer for any minister involved.
EDIT - Interestingly, it wasn't the NDP that brought this to the attention of the media, it was the PC party! If I had to guess (and only speculation), someone in the Sask Party (or bureaucracy) found out about this and told one of their old PC colleagues, or something like that. But who knows.
EDIT 2 - Looks like Minister Bill Boyd definitely has some previous contact with individuals involved.