impanel

merkitä valamiesluetteloon To enrol (jurors), e.g. from a jury pool; to register (the names of jurors) on a "panel" or official list.
c. 1590, (w), s:Sonnet 46 (Shakespeare)|Mine eye and heart are at a mortal war:

To 'cide this title is impannelled / A quest of thoughts, all tenants to the heart; / And by their verdict is determined / The clear eye's moiety, and the dear heart's part

Therefore a Jurie was impaneld streight / T'enquire of them, whether by force, or sleight, / Or their owne guilt, they were away conveyd?

We are often driven to empanell and select a jury of twelve men out of a whole countrie to determine of an acre of land(nb..).

In the courtroom itself they were empaneling a jury.