Thirty police officers allegedly affiliated with the Gülen Movement have been detained in the wiretapping investigation being carried out in seven provinces, including the southern city of Mersin early Monday. It was reported that former intelligence police chiefs were among those detained.Police detained 25 people last week in connection with alleged fraud in the 2010 nationwide Public Personnel Selection Exam (KPSS) for civil service recruitment.The suspects, including teachers and school administrators, were detained in a simultaneous operation conducted in 19 provinces, including Istanbul and Ankara, upon the order of Ankara Prosecutor Yücel Erkman, police said.Detention warrants were issued for 44 suspects in 19 provinces as part of the 2010 KPSS cheating scandal investigation.The Ankara Public Prosecutor's Office ordered the detention of 78 suspects in April as part of a second operation into fraud allegations connected with the exam.The first wave of arrests came in late March across 14 provinces, including Ankara, Istanbul and İzmir, which resulted in the detention of 62 suspects, 30 of whom were later released.Police allegedly found evidence for the involvement of members of the Gülen Movement in the fraud.The Gülen Movement is a transnational movement led by the U.S.-based imam Fethullah Gülen. It is accused of wiretapping thousands of people including government officials and encrypted phones. It has over 140 private schools around the world including in the U.S., Europe, Asia and Africa. It has been accused of infiltrating state institutions in Turkey and trying to overthrow the government. Government officials have continuously expressed their determination to continue to lawfully fight the Gülen Movement, whose followers are accused of infiltrating state institutions to gain control of state mechanisms and illegal wiretapping, forgery of official documents and spying.