PER INCURIAM

 

An Exposition of the concept of Per Incuriam in Sri Lankan Law

 

The strength of a legal system lies not merely in its capacity to decide disputes, but in its ability to correct itself without undermining its own foundations. The doctrine per incuriam represents one such carefully regulated mechanism. It is neither a device of insubordination nor a shortcut to avoid precedents, but a principled exception that permits the law to undo an error where such errors arise from ignorance of binding laws or decisions.

 

In its classical formulation, a decision is said to be per incuriam literally, “through lack of care”, when it has been rendered in ignorance or forgetfulness of a binding statutory provision or a binding judicial authority.  The doctrine does not apply merely because a decision is considered incorrect. It applies only where the court has failed to notice a rule of law which was directly applicable and which, had it been considered, would necessarily have altered the outcome.² This distinction is fundamental. It preserves the authority of precedent while ensuring that such authority is not extended to decisions founded upon oversight of law.

 

The doctrine traces its origin to the English common law system, within which the principle of stare decisis, the binding force of precedent, was developed. The earliest authoritative articulation of the doctrine is found in young v. Bristol Aeroplane Co Ltd, ³ where the Court of Appeal held that it is generally bound by its own prior decisions, subject to limited exceptions, one of which is where the earlier decision was given per incuriam. Subsequent authorities, including Morelle Ltd v. Wakeling,⁴ emphasized that the doctrine must be applied sparingly and only in clear cases of oversight. These principles have since been absorbed into Sri Lankan jurisprudence, forming part of the inherited common law tradition.

 

In Sri Lanka, the doctrine has been recognized and refined through a series of judicial decisions. In Billimoria v. Minister of Lands and Land Development,⁵ the court acknowledged that a decision rendered without reference to a relevant statutory provision cannot be treated as binding. Similarly, in Hettiarachchi v. Seneviratne,⁶ the Supreme Court emphasized that the failure to consider binding law undermines the authority of a decision. More recent jurisprudence has reiterated this position with greater precision. In Subasinghe Mudiyanselage Rosalin Bertha v. Maththumagala Kankanamge Juwan Appu,⁷ the Supreme Court clarified that a decision is not per incuriam merely because it is wrong; the defect must arise from ignorance of statute or binding precedent. This position was reaffirmed in Mohammed Kamil Kuthubdeen v. Attorney General,⁸ where the Court further held that failure to consider evidence or material documents does not fall within the doctrine, such matters being properly addressed through the appellate process.

 

A particularly instructive application of the doctrine in the Sri Lankan context is found in Jane Nona and others v. Surabiel and others[1]. Thorndyke In that case, the Court of Appeal was invited to follow a Supreme Court decision which had treated the failure to substitute legal representatives of a deceased party in a partition action as rendering the decree a nullity. The Court of Appeal declined to do so, holding that the Supreme Court had failed to consider the express provisions of section 81(9) of the Partition Law No. 21 of 1977, as amended. The earlier decision was therefore characterized as per incuriam. This decision is significant not merely for its conclusion, but for the constitutional and jurisprudential principle it affirms: that statutory law prevails over judicial precedent, and that a decision rendered in ignorance of such law cannot command binding authority.

 

This leads to a question of considerable importance: whether a judge of a lower court may, in appropriate circumstances, decline to follow a decision of a higher court on the ground that it is per incuriam. The answer, though delicate, must be stated with clarity. The doctrine does not exist solely for courts of co-ordinate jurisdiction. It is a principle of legal reasoning that applies across the judicial hierarchy, albeit with strict limitations. Where a lower court is confronted with a decision of a higher court that demonstrably falls within the narrow definition of per incuriam—that is, where it is shown that the decision was rendered in ignorance of a binding statutory provision—the lower court is not compelled to perpetuate that error.¹⁰

 

However, this power must be exercised with the utmost caution. The doctrine is not a licence for judicial disagreement. It is a duty to be exercised only where the oversight is clear, the ignored law is binding, and the consequence of the omission is decisive. Anything less would undermine the very structure of judicial authority. The decision in Jane Nona v. Surabiel illustrates this careful balance. The Court of Appeal did not reject the Supreme Court decision lightly; it did so only after demonstrating that the statutory provision in question had not been considered and that its consideration would have materially affected the outcome.

 

Instances of lower courts invoking the doctrine in Sri Lanka are rare, and rightly so. Apart from Jane Nona v. Surabiel, earlier judicial thinking may be traced to observations in Ramanathan Chettiar v. Wickramarachchi,¹¹ where the Court of Appeal recognised that certainty in the law must not be achieved by perpetuating error. Although not a direct application of per incuriam, the reasoning reflects the same underlying principle: that precedent must yield where it is demonstrably flawed by reason of oversight of law.

 

The advantages of the doctrine are both practical and principled. It enables the correction of clear legal errors without the necessity of prolonged and costly appellate proceedings. In appropriate cases, it allows an aggrieved party to seek relief without incurring the substantial expenses associated with appeals, revisions, or applications for restitutio in integrum. More importantly, it serves a systemic function: it ensures that the law remains coherent, that statutory provisions are not overlooked, and that judicial decisions retain their legitimacy.

 

There is also an ethical dimension to its application. Where a matter clearly falls within the ambit of per incuriam, the role of the legal practitioner transcends that of mere advocacy. The objective is not to secure an advantage for a client, but to restore the law to its correct position. In such circumstances, it is both appropriate and desirable that the legal profession exercise restraint in the matter of fees and approach the issue as one of professional responsibility. The correction of a per incuriam decision is not merely a service to a client; it is a contribution to the integrity of the legal system.

 

Ultimately, the doctrine of per incuriam must be understood as a doctrine of necessity, not convenience. It exists to prevent the law from being bound by decisions that were never properly grounded in law to begin with. Yet it must be applied sparingly, lest it erode the certainty that the doctrine of precedent is designed to secure. When used with discipline and care, it enables the law to correct itself without diminishing its authority. When misused, it risks unsettling the very foundations it seeks to preserve.

 

Footnotes

Young v. Bristol Aeroplane Co Ltd [1944] KB 718.

Subasinghe Mudiyanselage Rosalin Bertha v. Maththumagala Kankanamge Juwan Appu, S.C. Appeal No. 160/2016, S.C.M. 02.12.2022.

Young v. Bristol Aeroplane Co Ltd [1944] KB 718.

Morelle Ltd v. Wakeling [1955] 2 QB 379.

Billimoria v. Minister of Lands and Land Development (1978–79–80) 1 Sri LR 10.

Hettiarachchi v. Seneviratne, Deputy Bribery Commissioner (1994) 3 Sri LR 293.

Subasinghe Mudiyanselage Rosalin Bertha v. Maththumagala Kankanamge Juwan Appu, S.C. Appeal No. 160/2016, S.C.M. 02.12.2022.

Mohammed Kamil Kuthubdeen v. Attorney General, S.C. (Spl) L.A. No. 24/2024, S.C.M. 11.07.2025.

Jane Nona and others v. Surabiel and others (2013) 1 Sri LR 346.

See also Young v. Bristol Aeroplane Co Ltd [1944] KB 718; Government of Andhra Pradesh v. B. Satyanarayana Rao (2000) 4 SCC 262 (persuasive authority).

Ramanathan Chettiar v. Wickramarachchi (1978–79) 2 Sri LR 395.

 

 

Per Incuriam and Section 189 of the Civil Procedure Code. Authorities

 

The law, in its mature form, recognizes that not all judicial errors are of the same character, and therefore not all admit of the same remedy. Some errors are mechanical, arising from slips of the pen or failures of expression; others are juridical, arising from a failure to notice or apply the law itself. The distinction between these two classes of error is reflected, in Sri Lankan law, in the contrast between the doctrine of per incuriam and the corrective jurisdiction conferred by section 189 of the Civil Procedure Code.

 

Section 189 embodies a limited but important power. It permits a court, at any time, to correct clerical or arithmetical mistakes in its judgments, decrees, or orders, as well as errors arising from any accidental slip or omission. The purpose of the section is not to reopen adjudication, but to perfect the record—to ensure that the decree accurately reflects what the court intended to decide. It is, therefore, a power of correction, not reconsideration.

 

This principle finds authoritative expression in Dharmadasa v. Meraya,¹ where the Supreme Court was confronted with a partition decree that had failed to give effect to a life interest clearly reserved in a deed produced at trial. The omission was not the result of any conscious adjudication, but rather the consequence of the trial judges failure to notice the documentary evidence. A successor judge, acting under section 189, amended the final decree so as to include the life interest. Upholding this amendment, the Supreme Court held that the failure to notice the reservation of the life interest constituted an “accidental slip or omission” within the meaning of the section. The Court emphasised that in a partition action, it is the duty of the judge to investigate title not merely from oral testimony but from the entirety of the documentary record. Where that duty has not been fully discharged, and the resulting decree fails to reflect the true legal position disclosed by the evidence, section 189 may be invoked to correct the error.¹

 

The decision in Dharmadasa v. Meraya is firmly grounded in earlier authority. In Silva v. Silva (1910)² and Silva v. Silva (1912),³ it was recognized that a decree in a partition action may be amended to correct errors arising from oversight, even after the entry of the final decree. These decisions elucidate  the principle that the court retains a continuing jurisdiction to ensure that its decree is accurate in form and expression. They do not, however, suggest that the court may revisit the substance of its decision. The distinction is critical. Section 189 permits the correction of what the court failed to express, but it does not permit the court to change what it has decided.

 

It is at this point that the doctrine of per incuriam must be carefully distinguished. Unlike section 189, per incuriam does not operate within the confines of the same proceedings. It is a doctrine of precedent, concerned not with the correction of the record but with the authority of judicial decisions. A decision is said to be per incuriam when it has been rendered in ignorance of a binding statutory provision or a binding judicial authority. In such a case, the decision, though formally pronounced, is deprived of its binding force, and may be disregarded by subsequent courts.

 

The classical formulation of this doctrine is found in Young v. Bristol Aeroplane Co Ltd, where the English Court of Appeal held that a court is generally bound by its own previous decisions, subject to certain limited exceptions, including where the earlier decision was given per incuriam. This principle has been adopted in Sri Lanka and has been repeatedly affirmed by the Supreme Court. In Subasinghe Mudiyanselage Rosalin Bertha v. Juwan Appu, the Court held that a decision will not be regarded as per incuriam merely because it is erroneous; the defect must lie in the court’s failure to consider a binding rule of law. This position was reaffirmed in Mohammed Kamil Kuthubdeen v. Attorney General, where the Court emphasised that failure to consider evidence or to appreciate facts correctly does not fall within the doctrine, such matters being appropriate for appellate review rather than for invocation of per incuriam.

 

The practical distinction between section 189 and per incuriam may thus be stated in clear terms. Section 189 addresses errors that occur in the expression of the judgment; per incuriam addresses errors that occur in the formation of the judgment. The former is concerned with the accuracy of the decree; the latter with the authority of the decision.

 

This distinction assumes particular significance in the context of the Sri Lankan law of precedent. In Jane Nona and others v. Surabiel and others, the Court of Appeal was confronted with a situation in which a prior decision of the Supreme Court had been rendered without reference to a relevant statutory provision, namely section 81(9) of the Partition Law. The Court of Appeal declined to follow that decision, holding that it had been given per incuriam. The reasoning of the Court is instructive. It did not question the correctness of the earlier decision on its merits; rather, it demonstrated that the decision had been rendered in ignorance of a binding statutory provision which would have materially affected the outcome. In such circumstances, the Court held that it was not bound to follow the decision.

 

The significance of Jane Nona v. Surabiel lies not merely in its application of the doctrine, but in its affirmation of a broader principle: that the authority of precedent is contingent upon its conformity with law. A decision rendered without regard to binding law cannot command obedience merely by virtue of its source. Yet this principle must be applied with caution. The doctrine of per incuriam is not a licence for lower courts to disregard the decisions of higher courts at will. It is a narrow and exceptional doctrine, to be invoked only where the oversight is clear, the ignored law is binding, and the consequence of the omission is decisive.

 

In this respect, the role of the judge particularly the judge of a court of first instance—requires careful reflection. It is not the function of such a judge to challenge precedent lightly. But neither is it his duty to perpetuate a demonstrable error of law. Where a decision of a higher court clearly falls within the strict confines of per incuriam, the judge is not only entitled, but obliged, to give effect to the correct legal position. This is not an act of defiance; it is an act of fidelity to the law itself.

 

The availability of these doctrines also serves a practical purpose. Section 189 allows for the correction of minor but consequential errors without the need for costly and time-consuming appellate proceedings. The doctrine of per incuriam, in turn, permits the correction of more fundamental errors without requiring litigants to pursue elaborate remedies such as appeal, revision, or restitutio in integrum. In appropriate cases, these mechanisms enable the law to be corrected with minimal expense, thereby enhancing access to justice.

 

There is, moreover, an ethical dimension to their application. Where a matter clearly falls within the ambit of section 189 or per incuriam, the role of the legal practitioner is not merely to advance the interests of a client, but to assist in restoring the law to its proper course. In such cases, the emphasis shifts from adversarial advantage to judicial accuracy.

 

It is not inappropriate to suggest that, in these limited circumstances, the legal profession bears a responsibility to act with a measure of moderation in relation to financial considerations, recognizing that the correction of such errors serves the broader interests of justice and in actual fact the members of the noble profession are taking an effort to put right what it otherwise ought to have been keeping in mind the principle that an act of court will prejudice none. In other words, the maxim Actus curiae neminem gravabit (“An act of the court shall prejudice no one.”) which complements section 189 of the Civil Procedure Code and the doctrine of per incuriam, both of which allow courts to correct errors. The law not only delivers justice, but it ensures that its own mistakes do not defeat it.

 

The maxim stands as a reminder that no act of the court shall work injustice upon a litigant. It is not a doctrine of immunity, but one of responsibility, requiring the court to recognise, correct, and where necessary make amends for prejudice caused by its own inadvertent error, even where such error arises from a mere slip of the pen.

 

In conclusion, section 189 of the Civil Procedure Code and the doctrine of per incuriam represent two distinct but complementary mechanisms within the law’s architecture of correction. The former ensures that the record speaks accurately; the latter ensures that the law speaks correctly. Together, they reflect a legal system that is not only authoritative, but self-correcting—a system that recognises that justice is not diminished, but strengthened, by the capacity to acknowledge and rectify error.

 

 

 

 

Actus curiae neminem gravabit

Actus curiae neminem gravabit may be regarded as one of the highest blessings the law confers upon the judicial office, both here and hereafter, not as an escape from accountability, but as an assurance that any error of the court will not be allowed to mature into injustice. It reflects the enduring principle that while judges, being human, may err, the law itself does not permit such error to prejudice those who come before it. Actus curiae neminem gravabit stands as one of the highest blessings attached to the judicial office, in this life and beyond, in that it ensures that no act of the court shall work injustice upon a litigant. It is not a doctrine of immunity, but one of responsibility—requiring the court to correct its own errors so that justice remains unsullied. It enables the court to correct and make amends for prejudice caused to a party by its own inadvertent error.

 

Actus curiae neminem gravabit may be regarded as one of the highest assurances the law confers upon the judicial office, both in this life and beyond. It does not operate as an escape from accountability, but as a principled assurance that any error of the court will not be permitted to ripen into injustice. It reflects the enduring truth that, while judges are human and may err, the law itself does not allow such error to prejudice those who come before it.

 

Play music for Footnotes

Dharmadasa v. Meraya (1948) 50 NLR 197.

Silva v. Silva (1910) 13 NLR 87.

Silva v. Silva (1912) 15 NLR 146.

Subasinghe Mudiyanselage Rosalin Bertha v. Maththumagala Kankanamge Juwan Appu, S.C. Appeal No. 160/2016, S.C.M. 02.12.2022.

Mohammed Kamil Kuthubdeen v. Attorney General, S.C. (Spl) L.A. No. 24/2024, S.C.M. 11.07.2025.

Jane Nona and others v. Surabiel and others (2013) 1 Sri LR 346.

 



[1] [2013] 1 Sri LR 346

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