I don't get all these people who "forget" about their children and pets, leaving them to die in hot cars or equally idiotic ways.
If you're too dumb to not roast your child to death in the car accidentally, you're too dumb to be left to go about your business (perhaps you should spend some time in jail brushing up on other things everyone else manages to figure out: if you put your head in a full bucket, you'll drown; don't iron your clothes while wearing them; don't put forks in light sockets...). Not to mention, if you want to kill your kid/kids, the easiest way to get away with it would be to leave them in a hot car, cry a lot, and get off because you've "suffered enough". I'm not normally a fan of mandatory minimum sentencing, but this is one of those situations I'd be all for it. There's no way to separate the idiots from the malicious when it comes to kid-roasters, so sentence them all identically across the board. The idiots will be prevented from roasting another kid for X years, and the malicious ones will at least receive some sort of punishment (highly unlikely in most of the hot car deaths that happen today).
I wish I was kidding, but murdered kids are usually killed by members of their own household. Anyone with a bit of sense would know that this little "accidental" death is one rarely resulting in criminal charges/convictions.
As for this police officer, I must assume this conviction is the least of his worries. I'd think his department and fellow K9 handlers would levy their own punishment that would probably be worse (and I'm not necessarily talking about physically harming him) than whatever his animal cruelty conviction carries.