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Getty Protestors take to the streets of Cologne in protest of the New Year sex attacks

The world was outraged after migrants went on the rampage in Cologne along with other European cities to target women to rob, assault and sexually assault them in a night of horror. In Cologne, more than 1,200 crimes were reported, including 500 sexual attacks. But new figures have revealed just six the German legal system has only sentenced just six perpetrators.

Cologne: Sex Attacks and Robberies Tue, January 12, 2016 Thirty-one suspects, including 18 asylum seekers, are under investigation over offences including sexual assault and theft in Cologne on New Year's Eve. Far right protestors in Lepzig have rallied against refugees and German chancellor Angela Merkel. Play slideshow Reuters•Getty 1 of 22 Protestors in Lepzig rally after over 100 women were sexually assualted on New Year's Eve

Getty Protestors outside Cologne cathedral over the New Year sex attacks

The figures have come to light due to a request from the Free Democratic Party (FDP) to the Ministry of the Interior which were published on Friday. Of the 509 “sexually motivated activities”, 369, were suspended because no offender could be identified, including 211 prosecutions for sexual coercion or rape. The trials against 52 accused people, whose names were known, who were charged with offences against sexual self-determination or insults on a sexual basis, were also dropped.

Getty Police keep a watch on demonstrators in Cologne

Against 49 of them, there was no sufficient suspicion, of the other three the exact whereabouts could not be determined. FDP district chairman Marc Lubke said: "What we had feared is now becoming reality. The investigation commissions and justice will evidently not be able to make up for the shortcomings in catching the perpetrators at the scene during the night.

Getty Cologne's central train station where most of the attacks took place