Data may need to be deleted where:
- New data is received that supersedes old data
- Advice is received that a voter is deceased or has left the jurisdiction
- Advice is received that a record was created through fraud or error
For transparency and audit purposes, it is usually appropriate to keep a record of data deletions. In many cases, rather than delete data, it is appropriate to move out-of-date data to an archive file, where it can be accessed if needed.
In particular, where changes are made to a voter's records over time, such as changes to names or current addresses, it may be desirable (depending on local operational and legislative requirements) to keep a history of such changes.
