Wikipedia:DRVPURPOSE

Deletion review may be used:

1. if someone believes the closer of a deletion discussion interpreted the consensus incorrectly;
2. if a speedy deletion was done outside of the criteria or is otherwise disputed;
3. if significant new information has come to light since a deletion that would justify recreating the deleted page;
4. if a page has been wrongly deleted with no way to tell what exactly was deleted; or
5. if there were substantial procedural errors in the deletion discussion or speedy deletion.

Deletion review should not be used:

1. because of a disagreement with the deletion discussion's outcome that does not involve the closer's judgment (a page may be renominated after a reasonable timeframe);
2. (This point formerly required first consulting the deleting admin if possible. As per this discussion an editor is not required to consult the closer of a deletion discussion (or the deleting admin for a speedy deletion) before starting a deletion review. However doing so is good practice, and can often save time and effort for all concerned. Notifying the closer is required.)
3. to point out other pages that have or have not been deleted (as each page is different and stands or falls on its own merits);
4. to challenge an article's deletion via the proposed deletion process, or to have the history of a deleted page restored behind a new, improved version of the page, called a history-only undeletion (please go to Wikipedia:Requests for undeletion for these);
5. to repeat arguments already made in the deletion discussion;
6. to argue technicalities (such as a deletion discussion being closed ten minutes early);
7. to request that previously deleted content be used on other pages (please go to Wikipedia:Requests for undeletion for these requests);
8. to attack other editors, cast aspersions, or make accusations of bias (such requests may be speedily closed);
9. for uncontroversial undeletions, such as undeleting a very old article where substantial new sources have subsequently arisen. Use Wikipedia:Requests for undeletion instead.
10. to ask for permission to write a new version of a page which was deleted, unless it has been protected against creation. In general you don't need anyone's permission to recreate a deleted page, if your new version does not qualify for deletion then it will not be deleted.

Copyright violating, libelous, or otherwise prohibited content will not be restored.