Editing Jedwabne pogrom (section)

===Interviews===
Over the course of two years, IPN investigators interviewed some 111 witnesses, mainly from Poland, but also from Israel and the United States.{{citation needed|date=April 2020}} One-third of the IPN witnesses had been eyewitnesses of some part of the pogrom; most had been children at the time. The IPN also searched for documents in Polish archives in Warsaw, Białystok and Łomża, in German archives, and at Yad Vashem in Israel.{{Citation needed|date=July 2019}} During a visit to New York in January 2001, Leon Kieres, President of the IPN, said the IPN had found enough evidence to confirm that a group of Poles had been the perpetrators.{{sfn|Stokarska|2008}}{{request quotation|date=April 2020}} In June 2001, the IPN said ammunition shells recovered from the site were German, prompting speculation that German soldiers had fired at Jews fleeing the barn, but the IPN later found that the shells were from a different historical period.{{sfn|Michlic|2012|p=[https://books.google.com/books?id=BfQoxsH9bbwC&pg=PA81 81]}}{{sfn|Wolentarska-Ochman|2006|p={{page needed|date=April 2020}}}}