Anders Behring Breivik: Norway court finds him sane

And my first reaction was “only 21 years for killing 77 people?!?!?!”  But, this made me feel a bit better:

“He was convicted of terrorism and premeditated murder, and given the maximum sentence of 21 years’ imprisonment.

However, that can be prolonged at a later date if he is deemed to remain a danger to society.”

Which made me curious if we have something similar to the “can be prolonged” part in Canada.  Defining maximum sentences is mostly a good  thing, but there are extreme cases, like this, where they fail.