According to weekly German magazine FOCUS, the killed terrorist Amri who attacked the W Berlin Xmas Market Breitscheidplatz Square was possibly a police informer.
Federal police forces officials have denied such connections with the terrorist but North Rhine-Westphalian (NRW) state police and interior ministry got involved when Amri was released from Bavarian police custody for repatriation to Tunisia after having been arrested with false papers.
The opposition party CDU in the NRW State Assembly ("Landtag") has requested detailed information about possible police connections with Amri from the governing Social Democratic and Green Party - coalition.
... NRW criminal police chief Dieter Schürmann told lawmakers that both state and federal authorities had investigated concerns that the 24-year-old Tunisian could mount a terrorist attack. In the end, he said, their findings wouldn't stand up in court and they had "exhausted all legal powers to the limit to ward off potential dangers."