Turkish bodyguards served with criminal charges for allegedly attacking protesters outside the ambassador's residence in Washington, DC "won't set foot on German soil in the foreseeable future, so also during the G20 summit," a spokesman for the German Foreign Ministry said today.
Germany is preparing for mass protests when Hamburg, a northern port city, hosts leaders of the world's major economies next month.
The annual conference is a favoured target of demonstrations, and officials have been rehearsing security scenarios for more than half a year, said Wolfgang Schmidt, state councillor at the Hamburg senate chancellery.
"It will be the biggest police activity in the history of Hamburg," Schmidt said.
Because Germany is home to the largest Turkish population in the world outside of Turkey, one flash point for which authorities have been preparing is a possible clash between Turkish nationalists and Kurds, joined by protesters on the left. Tensions are running high after Turkish President Recep Tayyip Erdogan claimed victory in the northern spring in a referendum granting him expansive new powers.
The fear is a repeat, on a large scale, of the US skirmish that unfolded in May when, according to District of Columbia police, members of Erdogan's security detail descended on protesters at Sheridan Circle, along Massachusetts Avenue's Embassy Row.
Video appeared to show the guards, some of them armed, chasing and beating members of the crowd, with Erdogan looking on. Twelve people have been charged in the incident. Turkish officials, meanwhile, portrayed the guards as victims.
"We saw what happened in Washington," said David Stachnik, a spokesman for the Hamburg Police. "If it should escalate here, too, we're definitely prepared, but we don't have any specific indication that it will happen."
According to German media reports, the Turkish Embassy in Germany sent the Foreign Ministry a roster of people set to accompany Erdogan to next month's summit in Hamburg, including some of the agents implicated in the incident in DC. The Foreign Ministry made it known that these guards were not welcome, according to the reports.
The Foreign Ministry would not confirm, but made a point of not denying, that it had warned Turkish officials about whom they could send to Hamburg. Martin Schaefer, the Foreign Ministry's spokesman, said that he could "assume with a good conscience that the people who have been incriminated by the US criminal justice authorities" would not be at next month's conference. The Turkish Embassy did not return a request for comment
Schmidt, who has been closely involved in planning in Hamburg, said between 50,000 and 100,000 protesters are expected across two days of meetings, as well as the days leading up to the start of the conference on July 7. He said police are expecting up to 8000 violent protesters on July 6.
Authorities will be equipped with 45 water cannons, and police helicopters from all over Germany will fly overhead, Schmidt said. The summit will take place in two primary locations, a business centre and concert hall, making it possible to cordon off routes to hotels and the airport.
"The overall security concept in Hamburg should prevent any scenes that we have seen in Washington, because as always when a G-20 summit takes place in a democracy, the question is how you protect people's voices while limiting the possibility of an encounter," Schmidt said.
Ebru Turhan, a political scientist at the Turkish-German University of Istanbul, said the apparent decision by Germany to bar these guards from attending the summit is indicative of a recent period of intense mistrust between the two countries.
But she said this was only a "temporary crisis," as common interests, such as the management of the refugee crisis, as well as the conclusion in September of Germany's federal election, in which criticism of Turkey will be pronounced, will bring the countries back together.
"A vicious cycle of phases of conflict followed by moments of rapprochement has become characteristic of German-Turkish relations," Turhan said.