Technical and Administrative Review in Forensic Toxicology

Direct answer: Technical and administrative review are quality-assurance steps performed after analytical work but before a forensic toxicology result is finalized. Technical review asks whether the scientific data, method requirements, calibration, controls, identification criteria, calculations, and interpretation support the reported result. Administrative review asks whether the report is complete, internally consistent, properly documented, and released under the laboratory’s procedures. Neither review makes a flawed method valid, and neither substitutes for the underlying analytical record.

Why review matters

Forensic toxicology is not only an instrument measurement. Results move through specimen accessioning, preparation, extraction, calibration, instrumental analysis, data processing, interpretation, and reporting. Errors can arise at any of those steps. A structured review process is therefore part of a defensible quality system.

A 2025 Journal of Analytical Toxicology best-practices paper describes analytical data review at multiple levels: initial data processing, technical review of runs or batches, and overall case review. It also notes that separating review functions among different individuals is a useful safeguard against error and individual bias in forensic work.

What technical review should examine

1. Specimen identity and analytical scope

The reviewer should confirm that the reported result belongs to the correct case and specimen, that the tested matrix is appropriate for the method, and that the analyte falls within the laboratory’s validated scope. See method validation in forensic toxicology.

2. Calibration and quantitative performance

For quantitative methods, review should include the calibration model, weighting, accepted and rejected calibrators, back-calculated concentrations, control performance, dilution when required, and whether the case concentration falls within the validated analytical range. A correlation coefficient by itself is not enough to establish acceptable calibration.

3. Quality-control evidence

The reviewer should determine whether blanks, positive controls, negative controls, internal standards, and other batch acceptance criteria were satisfactory. A control failure should be evaluated according to a pre-established procedure rather than simply repeated until it passes. For a detailed framework on analyte-specific impact, partial reporting, repeat analysis, and root-cause review, see Failed Quality Control in Forensic Toxicology: Batch Review. See quality control in forensic toxicology.

4. Identification criteria

For mass-spectrometric methods, technical review may include retention time, diagnostic ions or transitions, ion ratios, signal quality, chromatographic separation, and any method-specific acceptance rules. Review should also consider whether an interference, coelution, low signal, or saturation could undermine identification. See LC-MS/MS identification criteria.

5. Integration and data processing

Automated integration is not infallible. The reviewer should be able to determine whether peaks were manually reintegrated, baselines changed, peaks excluded, or data reprocessed. When manual changes materially affect the result, the audit trail and reason for the change can be important. See Manual Peak Re-Integration in Forensic Toxicology for a focused review framework.

6. Sequence effects and carryover

The analytical sequence can matter when a specimen follows a high-concentration sample or when carryover is otherwise plausible. Review should consider whether the laboratory’s validated carryover controls were satisfied and whether blanks in the relevant sequence position were clean. See carryover and sequence effects.

7. Agreement with the complete case record

Case review can reveal mismatches that batch review alone cannot. For example, a reported analyte may conflict with another specimen, a medication history, a prior result, or the testing scope ordered for the case. Such discrepancies do not automatically make the result wrong, but they should be resolved before release when they suggest a possible specimen, method, or reporting error.

What administrative review should examine

Administrative review is usually narrower than technical review but still important. It may include:

correct case and specimen identifiers;
consistent analyte names and units;
correct qualifiers, comments, and reporting thresholds;
complete report history and amendment status;
required signatures or authorizations;
agreement between the final report and the approved analytical result;
compliance with the laboratory’s report-content procedure.

ANSI/ASB Standard 053 establishes minimum report-content requirements in forensic toxicology, while ANSI/ASB Standard 152 addresses minimum content requirements for forensic toxicology procedures.

What review can catch

Effective review can detect problems such as specimen or case mismatches, failed controls, incorrect units, transcription errors, inappropriate calibration, unacceptable identification criteria, unrecognized carryover, inconsistent results, reporting errors, or unsupported interpretive language.

What review cannot prove

A signed technical or administrative review does not establish that:

the analytical method was adequately validated in the first place;
the tested aliquot was representative of the original specimen;
the specimen was stable during storage;
the laboratory’s interpretation of impairment, timing, dose, or causation is scientifically justified;
an untested interference was impossible;
the reported concentration is exact rather than subject to measurement uncertainty.

Review is a safeguard, not an independent analytical experiment.

Records worth examining

When technical review is important in a case, the final report alone is usually insufficient. Useful records can include the analytical sequence, chromatograms, mass spectra or transition data, integration audit trail, calibration results, controls, internal-standard responses, instrument logs, dilution records, validation studies, SOPs, reviewer notes, amended reports, and corrective-action records.

See the toxicology laboratory records checklist for a broader evidence-review framework.

Frequently asked questions

Does a technical review prove the result is correct?

No. It provides evidence that a qualified reviewer found the result acceptable under the laboratory’s procedures. The strength of that evidence depends on what was actually reviewed and whether the underlying method, records, and criteria were sound.

Should the same analyst perform the technical review?

Independent review by another qualified person provides an additional safeguard because it reduces the risk that the original analyst simply confirms their own assumptions. Laboratory requirements and accreditation rules should be reviewed for the specific setting.

Are reviewer notes discoverable or useful?

They can be highly informative when they show a questioned integration, failed control, repeated analysis, calculation correction, or other issue that is not apparent from the final report.

Does administrative review include scientific interpretation?

Usually the primary scientific assessment belongs in technical and case review, while administrative review focuses on completeness, consistency, authorization, and reporting requirements. Laboratories may divide these functions differently, so the written procedure controls.

Standards and sources

For the broader framework connecting validation scope, calibration, selectivity, matrix effects, stability, reporting limits, and batch QC, see Validation Package Review in Forensic Toxicology.

Bottom line: Technical and administrative review are essential safeguards, but they are not substitutes for the underlying data. The most defensible review connects the final report back to the specimen, validated method, batch controls, identification criteria, calculations, audit trail, and complete case record.