Much higher than that in these particular cases, as noted in an article linked in OP:
> A recent white paper by a non-partisan organisation of prominent Chinese Americans in business, government, academia and the arts, examined information on nearly 300 defendants charged under the US Economic Espionage Act (EEA) between 1996 and 2020 [...] found that 27% of presumed Asian American citizens charged under the EEA were not convicted of any crimes. In total, the analysis showed that one in three Asian Americans alleged to have committed espionage may have been falsely accused.
And I don't think the feds have had a better record 2020-present.
But the percentage of arrests that do not lead to a conviction is astronomical. To a certain extent, mass arrest and detainment, even of the innocent, is just how the system works.
It shouldn't work that way.
But it is the reality on the ground right now. Not only that, but it's very hard to change for a lot of reasons.
I guarantee you, your reaction will not be "oh, thats ok then, the root cause was these other bad people"