A jailed suspect in the coup probe, Doğan, who is also the former head of the 1st Army, filed a complaint demanding TL 50,000 in non-pecuniary damages for Taraf's 2010 article that claimed several general planned to bomb Fatih Mosque. Doğan's lawsuit was filed against Taraf Editor-in-Chief Ahmet Altan, Assistant Editor-in-Chief Yasemin Çongar, Managing Editor Yıldıray Oğur and columnist Mehmet Baransu.
According to the Sledgehammer plan, made public by the Taraf daily, the Turkish Armed Forces (TSK) had a systematic plan to create chaos in society by bombing mosques and attacking popular museums. The attacks' desired result was to increase pressure on the Justice and Development Party (AK Party) government for failing to provide security for its
citizens. The attacks were to eventually lead to a military coup.
Taraf also published documents from this seminar as well as a voice recording featuring Gen. Doğan, the person who ostensibly prepared the Sledgehammer plan. Doğan admitted that the recording, in which the retired general speaks of domestic threats and of giving Parliament and the government an ultimatum, indeed featured his voice.