It's a blog post that completely misses the fucking point. If wikileaks had reported that Australian police were allowed to look up information on citizens without a valid reason (i.e. for shits and giggles) everyone would be up in arms saying, "Isn't this terrible?".
I haven't RTFB, but I have RTFS, and it already addresses this:
"a police officer [...] was fined -- not for disclosing confidential police information, but for unlawful use of a 'restricted-access computer system'
What is worrying in the story is that she was not fined for her real, very serious, and I hope very criminal offense, but instead was fined for something which is usually not considered a criminal offense, but merely a breach of contract: Using a service with permission but not complying with the usage policy.
Let us use a car analogy:
A policeman deliberately hits a person with a police car, causing the person to die.
Instead of charging him with murder (or whatever the correct legal term is), he is charged with car theft.
The logic behind:
He had a permission to use the car for police work. He had no permission to use the car for murder. Using a car without permission = car theft.