According to Sapir von Abel, the curator of education at the Jewish Museum of Munich, 

"Munich´s Jewish Community in the 1970s was a community of Shoah Survivors, many of them came to Munich through the Displaced Persons Camps. But they were not living an open Jewish life, it was still very much marginalised and separated from the german society. In 1970 an arson attack took place at the building of the Jewish community. The target of the arsonists was the Jewish retirement home on February 13th 1970. The arson attack has not been solved to this day, and it is still unclear who were the perpetrators. Crucial evidence has been destroyed by the Bavarian police". 

In 2012, a German newspaper, Der Speigel, published the first reports revealing that a Palestinian informant based in Beirut warned the German State Police who passed this information off to the Bavarian State Police about a possible incident being planned at the  Munich Games. This came with over three weeks until the opening events of the Olympic games, enough time for authorities to act but nothing happened. Both moments set up the Bavarian State Police as unreliable to the jewish community.