An Opinion is just an Opinion!

An Opinion is just an Opinion.

Indeed. In law, an expert's opinion is merely an opinion and not conclusive proof. However, in classification disputes under GST and Customs law, an expert opinion assumes substantial persuasive and evidentiary value when the issue involves specialised technical knowledge beyond ordinary understanding.

Legal Position Regarding Expert Opinion

Under the Indian Evidence Act, expert opinion is regarded as a relevant fact, but it is not binding upon adjudicating authorities, appellate tribunals, or courts. The authority concerned is not obligated to mechanically accept the expert's conclusion merely because it has been rendered by a specialist.

The settled legal principle is that:

'Expert evidence is advisory in nature and cannot override statutory interpretation.'

Therefore, in classification matters, the final determination must always be based upon:

• Tariff Headings;
• Section Notes;
• Chapter Notes;
• General Rules for Interpretation ('GRI');
• HSN Explanatory Notes;
• Judicial precedents;
• Functional characteristics of goods;
• Commercial identity of the product.

An expert cannot determine classification merely by assertion. The opinion must support and explain how the product technically fits within a particular tariff structure.

Why Expert Opinion Still Matters?

Although an opinion is not binding, it remains highly important because classification disputes frequently involve products whose nature cannot be properly understood without technical assistance.

For example:

• industrial automation systems;
• AI-enabled devices;
• specialised chemicals;
• medical diagnostic instruments;
• embedded software hardware systems;
• telecom infrastructure equipment;
• scientific instruments;
• composite machinery.

In such cases, the adjudicating authority may not possess the technical expertise necessary to understand:

• the product's principal function;
• operational mechanism;
• engineering characteristics;
• software integration;
• essential character;
• manufacturing composition.

An expert assists the authority in understanding the technical nature of the goods. Thereafter, the legal classification is determined by applying tariff principles.

Expert Opinion Cannot Replace Legal Interpretation

One of the most important principles in classification jurisprudence is that technical evidence cannot override statutory language.

For instance:

• a Chartered Engineer may state that a product functions as a 'control system';
• however, whether such control system falls under Heading 8537, 8471, 9032, or any other heading is ultimately a legal question.

Thus:

• technical identification is provided by experts;
• legal classification is decided by statutory interpretation.

Courts have repeatedly held that expert reports cannot prevail against clear tariff entries or binding judicial precedents.

Evidentiary Weight Depends Upon Quality of Opinion

All opinions are not equal in evidentiary value.

A vague or unsupported opinion carries little legal significance. Conversely, a detailed, reasoned, technically substantiated opinion supported by:

• product literature;
• testing reports;
• tariff analysis;
• chapter note interpretation;
• international classification practice;
• judicial precedents,

may substantially strengthen the taxpayer's position.

Authorities generally examine:

1. qualifications of the expert;
2. independence and neutrality;
3. methodology adopted;
4. documents examined;
5. reasoning process;
6. consistency with tariff structure.

Courts Do Not Decide Classification Solely on Expert Opinion

Indian courts have consistently maintained that classification is fundamentally a mixed question of law and fact.

Accordingly:

• experts explain the facts;
• courts interpret the law.

Where multiple expert opinions exist, courts independently evaluate:

• statutory provisions;
• technical evidence;
• market understanding;
• functional utility;
• trade parlance;
• HSN explanatory notes.

Therefore, expert opinion is persuasive but never determinative.

Practical Importance in GST Litigation

Even though an expert opinion is 'just an opinion,' practically it serves several important purposes:

1. Demonstrates Bona Fide Conduct

Obtaining expert advice before adopting a classification may help establish absence of mala fide intent.

2. Helps Defend Against Penalty

Where classification is interpretational and supported by expert opinion, penalties for suppression or deliberate misstatement may become difficult to sustain.

3. Assists During Investigation

Technical reports often help explain the product to departmental officers unfamiliar with specialised technology.

4. Strengthens Advance Ruling Applications

Advance Ruling Authorities frequently rely upon technical documentation and expert explanations.

5. Supports Litigation Strategy

A well-reasoned expert report becomes a foundational evidentiary document during adjudication and appellate proceedings.

Conclusion

Therefore, the statement that 'an opinion is just an opinion' is legally correct but practically incomplete.

In classification disputes involving highly technical products, expert opinion:

• does not bind the authorities;
• does not override statutory provisions;
• does not conclusively determine HSN classification.

However, it remains an important evidentiary and persuasive tool for explaining the technical nature of goods and supporting a legally sustainable classification position. Its true value lies not in conclusiveness, but in its capacity to assist statutory interpretation through specialised technical understanding.

***