Key legal question
Whether the untranslated diplomatic notes and late supplemental documents made the extradition request inadmissible.
Extracted holding
No. The request could be considered because the supporting materials were translated, the appellant understood the notes, and late supplements could be taken into account.
Extracted reasoning
The treaty goal of mutual assistance should not fail because of formal defects. The formal request and core documents arrived on time; the later guarantee letter was a permissible supplement under the applicable rules.