Finnish State Police said they made an arrest waves following an investigation into human trafficing activity.
Furthermore the Helsinki Police also said that during the months of January and May of this year, illegal prostitution activity was befallen at various illegal brothels.
On Monday, the Police raid illegal brothels where found more than 50 foreign prostitutes. Some of them worked as a sex-slave under pressure.
10 human trafficker have already arrested, and the police is still searching for 5 people involved with crimnal gang.