Polish-Russian Agreement from 1993, Its Omission in the Forming of the Process of Investigation on the Causes of Polish Air Force Tu-154 Crash in Smolensk and the Formula of Establishing the Agreement Between the Governments of the Polish Republic and Russian Federation on the Investigation on Its Causes According to the Rules of the Chicago Convention From 1944

On 10th April 2010 Polish Air Force Tu-154 carrying the President of the Republic of Poland Mr. Lech Kaczyński, the First Lady Maria Kaczyńska and 92 other high Polish officials and members of the crew, crashed in Smolensk. Following the crash, Polish and Russian governments by series of acts and omissions agreed for the investigation procedure according to the Chicago Convention from 1944, nothwithstanding the existence of the binding Polish-Russian agreement from 1993 applicable to military aircrafts.