There will be diplomatic negotiations for the enforcement of the arrest warrants.

The department will not issue a statement on the (results of the) preliminary investigation. However, the embassy and the department will continue to monitor the case including the tentative trial set on May 15.

He was arrested by FBI agents as a material witness in the espionage case.

That is an internal matter.

I prefer to say the plans will accommodate some big-box users.

I might beat him up, I might knock him out. I will win. [How] I do that, I have no idea.