Tzortzis has been a guest speaker in the United Kingdom, Turkey and Australia. Tzortzis was involved in publishing a survey study in 2010 to gauge non-Muslims' views of Islam in the United Kingdom. Tzortzis has contributed to the
BBC news programs:
The Big Questions and
Newsnight. Tzortzis stepped down from his role at
iERA and joined the Sapience Institute as of 2020.
Andrew Gilligan described Tzortzis in a 2010
The Telegraph article as "a former researcher for the hardline Hittin Institute and chaired the launch event of iERA, an umbrella organisation hosting many well-known British Muslim extremists who preach opposition to democracy and hatred against homosexuals and Jews." After
Keele University cancelled a speech by Tzortzis, the
Stoke Sentinel called him a "radical Islamic speaker ... a former member of the radical group
Hizb ut-Tahrir which believes in the idea of an Islamic state ... who supports
Sharia law ... [and has] also been linked to controversial comments on
homosexuality and a series of other issues." Tzortzis said in a 2016 interview that, while he still sees homosexuality as "sinful" in the eyes of God, he condemns any violence towards the homosexual community. He has stated that he does not believe in
apostasy laws, which he calls "outdated". Tzortzis also criticises
child marriage, opposes extremism, denounces the
Islamic State of Iraq and the Levant (ISIS), and tries to present a peaceful case for Islam. In 2016 India's
National Investigation Agency (NIA), in a chargesheet against the Islamic State, named Tzortzis as having directly or indirectly influenced suspects accused of having links with ISIS. Tzortzis says that he has influenced Muslims of all persuasions and cannot be blamed for extremists latching onto his words. He further stated that
ISIS are "spiritually diseased, sick people". == Publications ==