Prohibition to Hear Safety Investigators: The Supreme Court of Poland Judgment of 27 April 2015 - Air and Space Law View Prohibition to Hear Safety Investigators: The Supreme Court of Poland Judgment of 27 April 2015 by Piotr Kasprzyk,Anna Konert - Air and Space Law Prohibition to Hear Safety Investigators: The Supreme Court of Poland Judgment of 27 April 2015 Piotr Kasprzyk Anna Konert 42 4/5 Air and Space Law