The odd role the government assumes in the sex trade is in evidence among street hookers in Bonn. A Big Mac for Sex In the northern part of Cologne, where drug-addicted prostitutes work along Geestemünder Strasse not far from the Ford plant, no taxes are levied.Every evening, prostitutes have to buy a tax ticket from a machine, valid until 6 a.m. As part of a social project, so-called "working stalls" -- essentially walled off parking spots for car sex -- are built into a space under a shed roof.

Gang bangs." The price: €70 during the day and €100 in the evening.

According to Weppert, more than half of the women have no permanent residence, but instead travel from place to place, so that they can earn more money by being new to a particular city.

Only 1 percent of the women surveyed said that they had signed an employment contract as a prostitute.

The fact that the union had developed a "sample employment contract in the field of sexual services" didn't change matters.

Today "a high percentage of prostitutes don't go home after work, but rather remain at their place of work around the clock," a former prostitute using the pseudonym Doris Winter wrote in a contribution to the academic series "The Prostitution Law." "The women usually live in the rooms where they work," she added.

In Nuremberg, such rooms cost between €50 and €80 a day, says social worker Weppert, and the price can go up to €160 in brothels with a lot of customers.

Finally, there was "no solid proof to date" that the law had reduced crime.

Hardly a single court had heard a case involving a prostitute suing for her wages.

On the trip to Schifferstadt in the southwestern state of Rhineland-Palatinate, he gave Sina alcohol and slept with her.

Marian delivered her to the "No Limit," a flat-rate brothel.

We can't prove anything." This makes it difficult to track down those who bring fresh product from the most remote corners of Europe for Germany's brothels, product like Sina.