Most Poles have little faith that an upcoming report will explain what caused the plane crash last year that killed President Lech Kaczynski and 95 others, according to an opinion poll Wednesday, DPA reported.
Some 77 per cent said the Polish report will not clear up what caused the plane to crash as it attempted to land in heavy fog on April 10, 2010 in Smolensk, Russia.
The 300-page report on the Polish government's probe has already been completed, and will be released in the coming weeks as soon as it has been translated into both English and Russian, officials have said.
A rival Russian report released in January cleared its own traffic controllers of any wrongdoing and blamed Poland's air force chief for pressuring the crew to land despite bad weather.
That report caused an uproar in Poland, with officials saying that Moscow had failed to acknowledge its own role in causing the crash.
Poland's opposition Law and Justice party has alleged that Russia was largely responsible for the plane crash, saying they falsified and destroyed evidence, that the airport was poorly illuminated and that Russia had not provided adequate security for Kaczynski's visit.
Jaroslaw Kaczynski, twin brother of the deceased president and leader of Law and Justice, has previously blamed the ruling Civic Platform party as well as Moscow for bias in investigating the accident.