(DAILYMAIL) — Spanish Police investigating a prostitution ring in Madrid have freed a woman who had been beaten, tied, and had a bar code tattooed on her wrist.

The 19-year-old Spanish woman had been held against her will and had a tattoo on her wrist as a sign of ownership, as well as a money figure showing how much she owed her ‘pimp’ bosses.

The woman had also been whipped, chained to a radiator and had her hair and eyebrows shaved off by the ‘bar code pimps’ as part of the ring in central Madrid, officials said.

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