Which preposition to use with judice

in Occurrences 2%

The praetor, or judex quaestionis, presided over the judices in each court, and the judices returned a verdict by a majority of votes, sometimes given by ballot, sometimes openly.

at Occurrences 1%

To meet the exigency new laws are enacted, but the king especially states that the cases must remain in abeyance until the new laws are confirmed by the judices at the next assembly in March.

for Occurrences 1%

But Caius may have proposed that for judicial purposes 600 equites should form, as it were, a second chamber, which, being twice as numerous, would permit two judices for every senatorial judex.

from Occurrences 1%

Neither dared they till seventeen years later make an attempt to interfere with the selection of the judices from the equestrian order, and even then the attempt failed.

Which preposition to use with  judice