In Russian criminal trials, the success rate of the prosecution is 99%, giving Griner about a 1% likelihood to get off, barring any other type of side deal between the governments. To win 99% of one’s cases means there must be some pretty shrewd prosecutorial attorneys over there. Or, alternatively, perhaps those accused of crimes in Russia are not afforded the same basic rights as those of us here in the U.S. That big, bad, mean old United States that Griner likes to trash.
Actually, U.S. prosecutors also have high conviction rates, especially if you include all the people pressured to accept plea deals.
And seeing how the January 6th protestors (among others) are treated, I wouldn't celebrate Americans' Rights And Freedoms! the way this article does. It's no longer 1950s America.
Perhaps the same in Russia if they have this gal held in a cage within the courtroom. It is more of a psychological thing rather than a security measure.