"Things You Wouldn't Know If We Didn't Blog Intermittently."
30 May 2012
Security breach in Swedish prison
I can't confirm the year (or even the veracity) of the incident; a Google image search took me to a Swedish blog, where I can't find it. But I'd like to think it's true.
Addendum: The tradition continues of readers quickly finding answers to puzzles I can't solve. Within minutes of my posting it, Arenamontanus found the story in Aftonbladet, and MICHAEL found a report of the incident in 2002. Thank you, guys.