In quo quis delinquit in eo de jure est puniendus - In whatever thing one offends in that he is to be punished according to law.
In re dubia magis inficiatio quam affirmatio intelligenda - In a doubtful matter the negative is to be understood rather than the affirmative.
In republica maxime conservanda sunt jura belli - In a State the laws of war are to be especially observed.In situ - In its place.
In terrorem - As a warning or deterrent.
In testamentis plenius testatoris intentionem scrutamur - In wills we seek diligently the intention of the testator.
In traditionibus scriptorum non quod dictum est, sed quod gestum est, inspicitur - In the delivery of writings (deeds), not what is said but what is done is to be considered.
In verbis, non verba sed res et ratio quaerenda est - In words, not words, but the thing and the meaning are to be inquired into.
Indicia - Marks, signs.
Injuria non excusat injuriam - A wrong does not excuse a wrong.
Intentio inservire debet legibus, non leges intentioni - Intention ought to be subservient to
the laws, not the laws to the intention.
Inter alia - Amongst other things.