Things like these have been happening constantly in the last few months. I don't know what's worse: hackers taking advantage of Bitcoin to do these things or police and justice departments without basic malware protection... That's what happens when you cut corners while building systems with sensitive data. And when you have people accessing things they shouldn't.
Look on the bright side.
After few such incidents all the public bodies will have to step their game up and improve the data security/handling.
Also, few more people (in this case police officers) were forced to learn how to use bitcoin, not to mention they used taxpayers money to pump the price a little bit
Police departments around the world are trying to cut on expenses where they can. They only forget that online criminality is increasing every year with huge numbers.
Their hardware is old, they run old or not up2date software. It's simply asking for problems. Educating the police to know the basics of online security would be quite helpful.