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When the Interpreter Gets It Wrong: Challenging Interpretation on Appeal

By Mustafa Ahmed RPSI · NRPSI 17911

Interpretation errors do not stay buried. A mistranslation at interview or hearing can resurface as an inconsistency, a misunderstood answer, or an unfair process — and become a ground of appeal. Knowing how such a challenge is built helps both in running it and in preventing it.

In short

  • Interpretation errors can found an appeal or review where they affected the outcome.
  • Challenges depend on the record: recordings, transcripts and contemporaneous notes.
  • Prevention — registration, dialect-match, continuity — is cheaper than the challenge.

When an error becomes a ground

Not every imperfect rendering matters. A challenge has traction where the interpreting was unreliable in a way that affected the fairness of the process or the safety of a finding — for instance, where a key answer was mistranslated, or where apparent inconsistencies were artefacts of inconsistent interpreting rather than the witness's account.

What the record has to show

Establishing a mistranslation needs evidence: an audio recording, an official transcript, contemporaneous attendance notes, or an independent interpreter's analysis of what was actually said versus what was recorded. The better the original record, the more capable the point is of being run — which is one more reason to insist on quality interpreting and clear notes at the time.

Evidencing the error

Typically a suitably qualified independent interpreter reviews the source material and identifies the divergence and its significance. The argument is not that interpreting is imperfect in general, but that a specific, material error occurred and affected the outcome. Precision is what makes the point persuasive.

The cheaper path

Every one of these challenges is more expensive than the instruction that would have prevented it. Registered, dialect-matched interpreting, continuity of interpreter across stages, and clean contemporaneous notes are the controls that keep interpretation off the list of appealable problems.

Practice note: where interpreting quality is in doubt at the time, raise and record it then. A contemporaneous note of the concern is far stronger than a reconstruction months later.
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