Since no one else has posted this yet...

I see Dutch authorities got 900 btc out of this. 

I see no info on how the operation's security was compromised. It was a TOR site. 

"Police have seized Dutch online bazaar Utopia, a site similar to the infamous Silk Road for trading illegal goods, and arrested five suspects, the Dutch public prosecutor said Wednesday.

Read more at: http://phys.org/news/2014-02-dutch-utopia-website-guns-drugs.html#jCp

-hENRY