Various data validation routines can be applied to data to assist in identifying errors or fraud. Some validation routines that can be used include:
- Requiring address data to conform to a standard geographic base (see Geographic Base of a Voter Register)
- Performing automatic qualifications tests (such as ensuring the voter's date of birth is within the permitted age range, or checking that a person's declared citizenship details satisfy the voter eligibility criteria
- Checking whether spelling of names conforms to a standard list (thereby identifying possible errors of spelling)
- Checking whether the number of voters registered at a particular address exceeds the number of persons capable of living at that address
- Where signatures, photographs or finger/thumb prints are digitised, electronically checking whether any of these identifying features submitted by a voter matches any other records on the database
