Tell Rifaat from Ahrar al Sham in February 2016. ISIS While HT has been compared to ISIL and both groups share the goal of re-establishing a caliphate that unites the Muslim world, the groups have acted as competitors rather than allies. In late 2014, HT reported that a "senior member" of its group had been executed by ISIL in Aleppo for "questioning Baghdadi's self-proclaimed Caliphate". William Scates Frances argues that the groups are "embroiled in a bitter and ongoing feud" and are quite different in organizational structure, and—at least in Australia—in their supporters culture and demographics. Tunisia HT was established in Tunisia in the 1970s. In 1983, 30 men, including the head of the Tunisian HT branch, were arrested, charged with membership of an illegal organization and attempting to overthrow the government in order to replace it with a Caliphate. Of the 30 arrested, 19 were military personnel, and the remaining 11 were said to have incited army officers to join the party. A May 2008 press statement issued by HT's media office in North Africa reports that 20 activists were imprisoned in that month on charges of ‘participating in reestablishing an "illegitimate" organization (Hizb ut-Tahrir), holding unauthorised meetings, preparing a place for holding un-authorised meetings and in possession of leaflets deemed as disturbing public order.’ Following the Tunisian Revolution and the fall of the Zine El Abidine Ben Ali regime, HT has been called the "main hard-line Islamist group to emerge". It organized a female conference in Tunisia in March 2012. Turkey The Hizb ut-Tahrir is outlawed in Turkey. However, it is still in operation as a clandestine organization. As early as 1967, leaders of HT Turkey were arrested, and have been frequently since then. According to Today's Zaman, lieutenant Mehmet Ali Çelebi, detained in the Ergenekon investigations in 2008, allegedly had links with Hizb ut-Tahrir. Çelebi was allegedly the key that made possible the arrest of five Hizb ut-Tahrir members in September 2008. Despite the charges, Çelebi was found innocent. Although his cell phone was claimed to have sent signals for one minute and 22 seconds to the Fatih base station, police officials (widely considered to be members of the Islamist Gülen movement) admitted that they had entered the group's phone numbers in Çelebi's phone by accident during the investigation. On 24 July 2009, Turkish police arrested almost 200 people suspected of being members of Hizb ut-Tahrir. Central