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Id est (i.e) – That is.

Id quod commune est, nostrum esse dicitur – That which is common is said to be ours.

Idem – The same person or thing.

Idem nihil dicere et insufficienter dicere est – It is the same to say nothing as not to say enough.

Ignorantia facti excusat, ignorantia juris non excusat – Ignorance of fact excuses, ignorance of law does not excuse.

Imperium in imperio – A sovereignty within a sovereignty.

Impotentia excusat legem – Impossibility is an excuse in the law.

Impunitas semper ad deteriora invitat – Impunity always leads to greater crimes.

In aequali jure melior est conditio possidentis – When the parties have equal rights, the condition of the possessor is better.

In alta proditione nullus potest esse acessorius; sed principalis solum modo – In high treason no one can be an accessory; but a principal only.

In Anglia non est interregnum – In England there is no interregnum.

Inaudite altera parte – To listen to one party only.

In camera – In private.

In casu extremae necessitatis omnia sunt communia – In a case of extreme necessity everything is common.

In criminalibus probationes debent esse luce clariores – In criminal cases the proofs ought to be cleared than the light.

In curia domini regis, ipse in propria persona jura discernit – In the King’s Court, the King himself in his own person dispenses justice.

In delicto – At fault.

In esse – In existence.

In extenso – At full length.

In fictione legis aequitas existit – A legal fiction is consistent with equity.

In foro conscientiae – In the forum of conscience.

In futoro – In the future.

In jure non remota causa sed proxima spectatur – In law not the remote but the proximate cause is looked at.

In limine – At the outset, on the threshold.

In loco parentis – In place of the parent.

In mortua manu – In a dead hand.

In novo casu novum remedium apponendum est – In a new case a new remedy is to be applied.

In omni re nascitur res quae ipsam rem exterminat – In everything is born that which destroys the thing itself.

In omnibus – In every respect.

In pari delicto potior est conditio possidentis – When the parties are equally in the wrong the condition of the possessor is better.

In personam – Against the person.

In pleno – In full.

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.

Interest reipublicae res judicatas non rescindi – It is in the interest of the State that things adjudged be not rescinded.

Interest reipublicae suprema hominum testamenta rata haberi – It is in the interest of the State that men s last wills be sustained.

Interest reipublicae ut quilibet re sua bene utatur – It is in the interest of the State that every one use properly his own property.

Interest reipublicase ut sit finis litium – It is in the interest of the State that there be an end to litigation.

Interim – Temporary, in the meanwhile.

Interpretare et concordare leges legibus est optimus interpretandi modus – To interpret and harmonize laws is the best method of interpretation.

Interpretatio fienda est ut res magis valeat quam pereat – Such a construction is to be made that the thing may have effect rather than it should fail.

Interruptio multiplex non tollit praescriptionem semel obtentam – Repeated interruption does not defeat a prescription once obtained.

Invito beneficium non datur – A benefit is not conferred upon one against his consent.

Ipsissima verba – The very words of a speaker.

Ipso facto – By that very fact.

Ira furor brevis est – Anger is brief insanity.

Iter arma leges silent – In war the laws are silent.

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