The short answer
The strongest proof is an identifier (serial/IMEI/VIN) tied to you via purchase records and photos. If you don’t have everything, file anyway with what you do have: model, approximate purchase window, where it was bought, and any photos.
What police typically ask for
- Date/time window of theft
- Location and circumstances
- Description of items (brand/model/color/distinguishing marks)
- Identifiers if available (serial/IMEI/VIN)
- Any evidence: photos, surveillance availability, witnesses
What insurers and manufacturers often verify
- Ownership: do you have proof the item existed and belonged to you?
- Value: what was paid and what’s the replacement cost?
- Timeline: when was it purchased and when was it last in your possession?
- Identity: can the item be uniquely identified (serial/IMEI/VIN)?
The most valuable proof (in order)
- Serial/IMEI/VIN (typed + photo)
- Receipt/invoice/order confirmation
- Photos of the item in your possession (with time context if available)
- Warranty registration or service records
- Packaging label photos (often includes identifiers)
- Card statement line item (date + merchant)
How to write a clean timeline
Keep it factual. A clean timeline is short and specific:
Example structure
• Purchased: [date] from [store] (proof attached)
• Last confirmed in possession: [date/time] at [location]
• Theft window: [from] to [to]
• Report filed: [date] (report number if provided)
• Identifiers: [serial/IMEI/VIN]
If you do not have receipts or serial numbers
File with what you have and rebuild evidence afterward:
- Check retailer order history and email receipts.
- Look for photos of the item or its packaging label.
- Check service/repair records if you ever had it serviced.
- Use card statements to establish purchase window and seller.