The three things a clerk abroad weighs
Binding, oath, names. The clerk lifts the bundle, sees whether the sheets are fastened as one, finds the sworn wording, then matches the signature to a person and to an officer. A certified translation of a Translator's Affidavit in Glasgow that satisfies those three moves gets read. One that fails any of them is handed straight back over the counter.
The oath behind the stamp
A stamp on its own proves little. What gives it force is the sentence beneath it, in which the translator swears the rendering is true and complete, plus the officer's note that the signature was made in their presence. This document is a private act, so a notary or solicitor must witness that signature before any authority will act on it.
Keeping the pages inseparable
Once the oath is signed it points at particular sheets, so those sheets must stay attached to it. A certified translation of a Translator's Affidavit in United Kingdom is fastened and the fastening marked, which is why an unstapled set draws suspicion at the counter. If a page could have been swapped after signing, the sworn words no longer cover what the reader is holding.
The gaps that stop a file
Blank dates. An unnamed language pair. A seal shown as a bracketed note instead of rendered. A signature page photocopied rather than signed by hand. Each gap is small, and each one is enough on its own. Files rarely fail on style; they fail because something a clerk needs to see is simply not on the sheet in front of them.
What it costs, and where a Glasgow record starts
The translation cost for a Translator's Affidavit in Glasgow is charged by the page, at around £25 a page, so a two-page oath is a small line on any file. Where the oath accompanies a civil record, Glasgow Registration Office at 45 John Street, Glasgow G1 1JE issues a fresh certified extract, and that extract can be used instead of the copy sitting in your own drawer.