11. The above is an indicative list and it is for the Department to consider what steps may be relevant in an individual appeal. I will however note that it is not sufficient to simply list in a generic manner that searches were carried out by keyword or that relevant personnel were contacted. Sufficient details must be provided as to the exact areas searched, a description such as the job title of the persons contacted, a description of the particular types of searches carried out, an explanation of why such searches were considered appropriate, and any other relevant detail that will explain why the Department does not hold the information sought. In the vast majority of cases it will not be sufficient to simply state that no records were found. It should be born in mind that the requestor, and equally this Office, is unlikely to have a detailed knowledge of the inner workings of the Department. The Department should therefore set out why a particular business unit was contacted in relation to this request or why a particular database was searched. Where the appellant raises particular issues in his request for an internal review, those should be addressed in the internal review decision. This was not done, or was not done to a satisfactory level in these appeals.