Meat Species Testing NZ: Prepare an Authenticity Investigation Brief

Meat species testing can help a New Zealand food business investigate whether material supports an identity claim. The useful starting point is a clear claim, a traceable sample and a method suited to the product. A report headed “DNA testing” does not explain which species were examined or how far the conclusion extends.

This guide helps manufacturers, importers, brand owners and purchasing teams prepare a focused authenticity investigation brief. It covers the evidence discussion before testing and the review afterwards. It is distinct from a microbiological safety test or a full food fraud vulnerability assessment of the supply chain.

Define the claim before ordering meat species testing

Keep a copy of the actual representation: the approved specification, ingredient declaration, purchase description, packaging or customer requirement. Identify who made it and which product and batch it covers. A question about a whole raw cut differs from a question about a cooked mixed-meat filling, gelatine ingredient or sauce containing several animal-derived components.

The Commerce Commission’s guidance on accurate claims says businesses need reasonable grounds for claims when they make them, and should retain supporting evidence. Testing can contribute to that evidence, but the proposed wording still needs its own review. Define what a satisfactory investigation would answer rather than collecting a report only to place in an audit folder.

Use a neutral question such as: “Does this sample support the supplier’s stated species description, within the agreed method scope?” Record alternative questions separately. Determining an unknown species, checking for a named undeclared species and estimating a specified component can require different analytical work.

The briefing framework below is AFVA’s recommended preparation approach. It is not a prescribed official form, a universal screening panel or a compulsory testing frequency. It does not determine whether an actual product is compliant.

Match the method to the actual product and purpose

Tell the laboratory whether the material is a single raw cut, minced meat, a cooked mixture or a highly processed ingredient. Include relevant processing and formulation information. Ask what evidence supports the proposed method for that material and target. The word “species” on a service list is not a complete method description.

For a specific example, the public scope for EN 17882:2024 meat DNA barcoding describes identification using particular mitochondrial gene segments. Its validation concerns single raw meat pieces; it describes limitations for highly degraded DNA and mixtures of species. This demonstrates why scope matters. It is not a recommendation to apply that method to every product, and the full standard has not been reproduced here.

Quantitative work also needs a defined basis. A UK Food Standards Agency collaborative-trial summary describes validation for specific horse/pork and beef combinations in raw or processed material. It does not establish performance for every species, recipe or commercial assay. No UK study threshold in that report is presented here as a New Zealand legal tolerance.

• Which named species or broader identification question does the proposed method cover?
• Is the result presence/absence, an identification, a relative DNA measurement or another quantitative expression?
• What limitations, reporting limits, reference materials and uncertainty apply to this product?
• What happens if the target is not detected, the sample is unsuitable or the result is inconclusive?
• Which tests fall within the performing laboratory’s current accredited scope, and is any work subcontracted?

IANZ’s biological-testing programme describes accreditation scopes through sample types, tests and methods or techniques. Check the relevant scope and the laboratory’s explanation of suitability. General laboratory accreditation does not by itself describe every species test or matrix covered.

Build a brief that connects the concern with the evidence

Prepare a short pack that another reviewer can follow without guessing. Keep confirmed facts, supplier statements and unresolved questions distinguishable. Where the concern relates to one delivery, do not silently expand the allegation to every product supplied by that business.

For example, a supplier description and a receiving label may name different species. Preserve both descriptions and the affected lot link. The initial investigation question is which description is supported and why they differ. That discrepancy is a reason to gather evidence; it is not, by itself, a finding of deliberate substitution. This is a hypothetical preparation example, not an AFVA client case.

Protect sample identity and define what the samples represent

Agree sampling with the laboratory and competent reviewer before collection. Decide whether the question concerns a particular unit, delivery, ingredient lot or production batch, and what sampling approach could support that scope. Obtain instructions for quantities, containers, handling, storage and transport. This guide supplies no standard number of samples or universal transport temperature.

Keep a clear link between the submitted sample, its original packaging or source, and the records in the brief. Record collection, transfers and any opening or preparation. Tell the laboratory about previous handling or any uncertainty in identity. Do not replace an uncertain sample history with an assumed chain of custody.

A recent UK FSA surveillance report explains that analysis of individual purchased items may not represent a whole batch or production run. Its meat examples also show that a defined species panel may need further identification work. These are analytical illustrations from a UK programme, not New Zealand prevalence figures or a prescribed local investigation protocol.

Read the reported result before drawing a wider conclusion

Check that the report matches the intended sample and the question agreed with the laboratory. Read its target list, method, reporting expression and qualifications. Ask for clarification of a non-detect, inconclusive result or unexpected identification. Do not substitute the word “pass” for an explanation of what was actually established.

Where a percentage is reported, ask what the denominator and measurement basis mean. Do not use a relative DNA value as an ingredient mass percentage without the laboratory explaining a validated basis for that use. Preserve the method and matrix limitations when comparing the result with a formulation or label statement.

A non-detect for named targets should not become an assertion that no other animal species is present. Likewise, an unexpected finding needs investigation before its cause can be assigned. Review possible record, product, sample and analytical explanations with the appropriate people; this is a process for finding evidence, not a list of conclusions to select from.

Species identity also differs from geographic origin. The FSA review of country-of-origin methods explains the limitations of assigning location from the DNA of an organism that can be raised or grown elsewhere. Do not turn a species identification into a country, farm, breed, production-system or certification claim that the test was not designed to establish.

Assess food safety and suitability through the applicable business procedures when a concern also raises those issues. A species investigation does not complete microbiological hazard assessment or create a release, retest or recall rule. The AFVA molecular microbiology guide addresses the different question of pathogen method selection and report wording.

Connect the finding with supplier and production evidence

Ask the supplier for evidence that addresses the actual discrepancy: relevant product and batch descriptions, manufacturing links, ingredient or production records, and an explanation of any changes. Retain the original reply and its supporting references. A new generic certificate may add little if it cannot be connected to the affected material.

Prepare a conclusion that separates the tested sample’s outcome from the wider supply decision. State the records considered, the explanation supported by those records, the gaps remaining and any action owner. If further analysis is needed, record why it addresses the gap rather than repeating tests until a preferred answer appears. Agree follow-up through the laboratory and authorised business reviewer.

Where the evidence reveals a broader vulnerability, feed the finding into the relevant supplier-approval or food-fraud review. The focused investigation and that wider assessment can inform each other, while retaining their separate purposes. Do not describe a proposed control as implemented until evidence confirms it.

Before-commissioning checklist

1. The exact identity claim, material and relevant batch are recorded.
2. The laboratory has explained method suitability, target coverage, report expression and limitations.
3. Sample selection and handling have been agreed for the intended decision.
4. Supplier, receipt, formulation and production evidence is linked where relevant.
5. A named person will review the complete results and unresolved questions.
6. The conclusion will distinguish identity evidence, cause, food-safety questions and the final supplier or product decision.

How AFVA can support the investigation

Access Food Verification & Auditing Limited can help organise a product-issue investigation, review relevant documents and records, support sampling discussions and coordinate suitable external laboratory work. The agreed scope can include evidence review and practical corrective-action recommendations. Laboratory analysis and its report come from the performing laboratory; AFVA does not issue a DNA-testing result or certify a product’s authenticity.

Provide the material description, exact claim, relevant lot links, original report if one exists and the decision you need to make. Our food-testing guide is a useful starting point if the analytical question is still unclear. Discuss the specific engagement with AFVA before committing to a panel or promising a conclusion to a customer.

Frequently asked questions

Commission work around a decision you can explain

A useful investigation begins with a precise claim and ends with an evidence-based, limited conclusion. Keep the sample, laboratory report and supplier records connected, with unresolved questions visible and responsibility for the next step clear.

General information only: requirements and appropriate testing depend on the exact product, process, market, claim and intended decision. Use current official requirements and product-specific technical advice. This guide is not a laboratory method, release authorisation or regulatory approval.