You can see all the Evidence linked to a specific Product from the Product's own Evidences tab. This includes evidence applied to the Product itself, and evidence inherited from its product template, locations and organisation.
View a Product's evidence
Go to Product Traceability > Products and open a Product. Select its Evidences tab to see the Evidence linked to it. Click a row to open the full details of that Evidence record.
For what an Evidence is and how it works, see What is an Evidence?