The senate has the right to veto or ammend any given bill presented to them. They are called the House of Sober Second Thought for a reason...and when they actually perform as such, bills are usually improved by the changes.
In contrast, poor bills that are ram rodded through the house of commons often have piss poor clauses and nasty rammifications... or really big loop holes. Let's be clear, the House of Commons passes laws in order to promote themselves to the public (quite often)...it falls to the senate to actually make these laws work in a sensible way.
To paraphrase Honouable Larry Cambell, "it's the senates job to review bills." Not, as some think, to bow to the House of Commons and the Dictatorship of Harper (I did like that quote!).... or to the whims of any house leader. They are expected to abide by party wishes, but their stated job is above and beyond party desires.
Now... regarding the credit for time served business... it isn't designed at a bonus to the defendant. It's designed to force the crown to ensure the defendants right to a speedy trial. Without the credit for time served clause, the crown has no reason NOT to fillibuster while the defendant languishes in pretrial detainment (prison, jail...whatever). Effectively, they could continue on like this until a judge forces them into action, and then push for whatever extensive charges they can muster.
Our justice system is slow enough as is...why introduce an incentive to slow it down even more? Not that I like the idea of going easy on criminals, far from it. I just can't stand Harpers short sighted "tough on crime" BS that he spouts out his oozing pie hole.
Let's look at his general bent:
1) Election polls show we've fallen from massive majority
2) Push all the simple solution buttons we can, pray for mindless sheep to eat it up
Getting tough on crime it great. Preventing crime is better. Cutting education and poverty line support (Gordo is guilty of this) massively increases crime stats a few years down the road. Making sentencing so damn tough that criminals decide they'd better make their arrest "worth it"...tends to make them more violent, unpredictable, and dangerous.
A cornered animal fights to the death, and we are simply fur-less animals. Say we get into the 3 strikes your out business, or mandatory minimum sentencing... or both... now instead of a parole situation (parole is supposed to be monitored), you have a guy that is facing a massive sentence anyway...one more body won't hurt. Denial of parole simply means that when their time is up, they are free to go... without any monitoring of their actions or where abouts.
That's right, when you get out, your debt to society is considered fulfilled. Whether you're a danger or not... your time is done and there's nothing that can be done to you. No social work, no wardens, no warnings to your neighborhood (well, there isn't supposed to be). You could still be a murderous lunatic, but there is no legal method of keeping you once your sentence is fulfilled (as long as you haven't given them reason to re evaluate your sentence).
....
Now, let's flip the coin. Police make all sorts of mistakes. Even judges and juries do... innocent people get stuck in the defendants docket. How long must an innocent person languish in pretrial, just because there is no pressure on the crown to start the trial? If there's no credit for time served, then that innocent person could be there a very long time... and as far as I'm concerned, 1 day in prison for an innocent is too much.
So there's the reason for having credit... speedy due process. It makes for a better justice sytem & protects the rights of innocent people. Oh, and since we have an "innocent until proven guilty" clause in our laws, that means everyone and anyone...up until the handing down of the verdict.
Which reminds me, I heard that the closing arguements of the officers invovled in the YVR death was that "police make mistakes. They are human, and are allowed to make mistakes... even if that mistake causes death."
Call me crazy, but wouldn't anyone else that makes that "mistake" be charged with manslaughter at the least, and more likely muder (without premeditation) being what the crown would go for? Considering they are simply looking at a misconduct charge, of which penalties could range from discharge to desk duty (to a small leave without pay)... I think they should man up and realize that they are getting off REALLY easy compared to anyone else in the country.