According to the Anadolu Agency, Topuz testified that he went to the U.S. on Sept. 24, 2012 with Drug Enforcement Administration (DEA) official James Long, FETÖ-linked Istanbul Financial Crimes Unit's former Director Yakup Saygılı, former deputy director Yasin Topçu and İbrahim Şener, who was leading the wiretapping activities during the Dec. 17-25 operations.
Topuz noted that the group first went to Washington and met attorney general Daniel Grooms, then held meetings with DEA's financial crimes unit head Brian Mcknight, coordinator Mark Snyder and other coordinators Margaret Williams and Michael Barbuti on Sept. 25, 2012.
The group then allegedly traveled to the New York Southern District Attorney General on Sept. 27 and met attorney Michael Ferrera, then met with DEA's financial crimes group chief in New York.
Topuz testified that the visit consisted of sharing information with U.S. officials, rather than the exchange of information or cooperation.
The aforementioned police officers Saygılı, Topçu and Şener are currently jailed pending trial for plotting to bring down the democratically-elected government and infraction of rules as part of the Dec. 17-25 probe.
Previously, a witness said Topuz arranged false witnesses for a prosecutor to imprison innocent people who were against the interests of the FETÖ as part of the Ergenekon trials.
Turkish national Metin Topuz, confirmed by the U.S. consulate in Istanbul as a local employee, was remanded in custody over terrorism charges by an Istanbul court in October.
He is suspected of having links to the Gülenist Terror Group (FETÖ), which is behind last year's defeated coup attempt, according to a judicial source. Ankara says the FETÖ and its U.S.-based leader, Fetullah Gülen, orchestrated the attempted coup, which killed 250 people and injured nearly 2,200.
According to the indictment, the suspect was in contact with a number of former police chiefs in Istanbul where he worked, and all those police chiefs involved in the 2013 coup attempts were FETÖ members in the judiciary and law enforcement.
He was also in touch with Oktay Akkaya, a former lieutenant colonel who was among the main actors in the 2016 coup attempt.
His arrest damaged relations between Turkey and the U.S. as both countries suspended non-immigrant visa services at missions in their respective countries.