The Yassıada Trials were a series of criminal cases in Turkey brought by the military regime against politicians of the formerly ruling Democrat Party.
[3] Former President Celal Bayar, former Prime Minister Adnan Menderes and others arrested after the coup were imprisoned in Yassıada in the Sea of Marmara.
Decisions of the Supreme Court of Justice were to be final, with no possibility of appeal or reprieve, but any death sentences were to be carried out by the National Unity Committee (MBK) and subject to its approval.
Later, Celâl Bayar had the dog sold to Atatürk Forest Farm and Zoo for 20,000 liras and used the money to pay for a fountain in Mursallı, in the Ödemiş district of İzmir.
President Celâl Bayar and Minister of Agriculture Nedim Ökmen were convicted of abusing their influence and authority and making this sale for their own personal gain.
Celâl Bayar, Adnan Menderes, Fatin Rüştü Zorlu, Mehmet Fuad Köprülü, Istanbul Governor Fahrettin Kerim Gökay, Istanbul Police Chief Alaaddin Eriş, İzmir Governor Kemal Hadımlı [tr], Thessaloniki Consul General Mehmet Ali Balin and others were charged with planting a bomb at the house of Mustafa Kemal Atatürk in Thessaloniki, blaming Turkey's Greek minority for the crime and then organising the burning of their houses.
[7]: 108–10 [2] Adnan Menderes was accused of arranging with Dr. Fahri Atabay, Chief Physician of the Zeynep Kamil Hospital, to have a baby killed that he had just fathered with his mistress, Ayhan Aydan.
[8][9][10] The former Minister of Finance, Hasan Polatkan was accused of providing illegal loans from Türkiye Vakıflar Bankası (founded by Adnan Menderes) to Vinyleks and receiving a bribe of 110,000 liras in return.
[11][2] Former ministers Hayrettin Erkmen and tr:Zeyyat Mandalinci were tried for not giving back foreign currency left over from their trip to the USA.
[12][2] Agriculture Minister tr:Nedim Ökmen was tried and convicted for forcing the government to buy land belonging to his wife at exorbitant prices.
[12][13] Opposition leader İsmet İnönü came to Istanbul on May 4, 1959, but his way from Yeşilköy Airport to Topkapi in the city centre was blocked by traffic wardens and he was then attacked by rioters.
A total of 60 defendants, consisting of Celal Bayar, Adnan Menderes, ministers and deputies, were tried on the charge of "provoking the public with the aim of plotting an assassination against İsmet İnönü in Topkapı on May 4, 1959 ".
[12] Adnan Menderes and 9 former civil servants were prosecuted in Istanbul for allegedly expropriating the property of many citizens without paying the full price.
There were 8 accusations of violating Article 146 of the Turkish Penal Code: Based on this crime, the court ruled that some of the defendants should be executed and some should be sentenced to life or hard imprisonment.
In accordance with the same law, their bodies were moved from İmralı to the mausoleum built for them on tr:Vatan Caddesi in Istanbul on September 17, 1990, the 29th anniversary of Menderes’ death, with a ceremony attended by President Turgut Özal.
According to this new law, the legal provisions forming the basis of the powers exercised by the Supreme Court of Justice, then still in effect, were repealed retrospectively.