Mr. Speaker, I explained in my speech that these three cases were argued on very complex issues of law, that this continued to be allowed as a defence and we felt it needed to be removed. We have found a reasonable balance between serious offences that may be considered as part of the provocation, but we certainly do not think things like insulting someone, making a comment, or disobeying is enough to allow someone to use that an as excuse for murdering family members or those close to them.
In the House of Commons on March 12th, 2015. See this statement in context.