Records that show her knowledge and its origin: procedures she authored, training records, service logs and a description of the proprietary platform, plus corporate and payroll records proving the relationship and the year abroad.
Redact the trade secret, keep the proof
Hypothetical example: a Frontenac Islands technician's employer hesitates to attach its commissioning manual to a government filing. The petition does not need the whole manual. It needs enough to show that a proprietary body of procedures exists, that she authored or maintains it and that it is not public.
A table of contents, the revision history page listing her as author, a redacted sample section and a statement from the engineering manager describing the platform's proprietary features will usually suffice. Her personnel file should supply the continuous year: payroll for twelve consecutive months within the last three years with the Canadian company. Corporate records should show the U.S.
subsidiary's ownership by the parent. The U.S. side should supply an itinerary or description of the first assignments, the customer contracts showing commissioning as part of the sale and a statement of who supervises her offsite.
Certified translations are required for anything not in English. Hypothetical example: A Frontenac Islands medical-imaging device installer has developed a proprietary troubleshooting guide for a Canadian manufacturer. A first review should produce the guide, version history, training records, and a statement showing who can access it.
The assignment agreement settles whether the U.S. affiliate will control the work rather than merely receive a contractor. Redactions may protect confidential details, but the remaining record must still explain why the knowledge is specialized.