Modifying a Case Evidence record with a status of 'InEdit' is really just an extension of the create process. The record will be changed in-place, but no new member of the Case Evidence record's succession set will be created.
The Received Date is present on the modify page too, and if it is changed it may result in the user being redirected to another modify page to finish editing the record, as described above for the create page. This will happen when the user attempts to save the Case Evidence record. In this way InEdit Case evidence records can be modified to belong to a different Dynamic Evidence Type Version (although in practice, this is an edge case which should happen very rarely).
The modify page header also has a field for another important business date - Effective Date of Change - however this does not become valid until the Case Evidence record has been Activated, and attempting to change it will result in an error being displayed. This behaviour has been retained is identical to that in respect of Non-Dynamic Evidence Types..