"We have to assume that many of these crimes will not be followed up on," BKA President Holger Münch declared.
Furthermore, according to the data obtained by BKA, over half of the suspected perpetrators are migrants who have been in Germany for less than a year, and that most of the suspects come from North Africa.
"There is a connection between the occurrence of the phenomenon and the strong levels of immigration in 2015," Münch admitted.
However, despite such a staggering number of reported crimes, there were only four convictions nationwide regarding these attacks, Die Zeit points out. Münch blamed this tendency on what he called "investigation hindrances," arguing that there was little visual material to help identify the suspects and that many of the victims were unable to provide accurate descriptions of their offenders.
He also added that so far there’s no reason to believe that these attacks were premediated or were coordinated by anyone.
The BKA is expected to publish the full version of its report in the near future.