According to a report in the Kurier newspaper, prison officials became concerned when they learned that the correctional officer was supplementing her income by working part time in a nearby brothel.
Rather than serving customers directly, however, the guard was responsible for the security of the brothel, as well as undertaking collection tasks - presumably if customers got into arrears.
An administrative tribunal reviewed the case as a disciplinary infraction, and made the decision that prison guards may not engage in any outside activity relating to prostitution, even though it is fully licensed and legal in Austria.
The woman had followed procedure by reporting that she had a source of secondary income in a local business, but wasn't specific as to the nature of the business.
The administrative panel decided that the woman was required to cease her employment with the brothel, and pay a fine equal to three months' salary.