In my mind, if he can't ask to be reassigned or something (I have no idea how this works), he should stick with truth.
If he finds that the dude did indeed commit the act (because let's not forget that it could be the case the dude is innocent). then he should do what any good defense attorney would do and just try and make the sentencing as light as possible.
That way he did his job and didn't subvert truth, I don't know which other option he has other than to just resign.
In my mind, if he can't ask to be reassigned or something (I have no idea how this works), he should stick with truth.
If he finds that the dude did indeed commit the act (because let's not forget that it could be the case the dude is innocent). then he should do what any good defense attorney would do and just try and make the sentencing as light as possible.
That way he did his job and didn't subvert truth, I don't know which other option he has other than to just resign.