- When sending a one-off email, do a dry run and think about how to make sure that you're sending them to the right people. (See incident on 2020-06-05)
- When adding new fields to the database, if you're storing "yes/no" values from checkboxes in forms, always use the
booleantype in the database. Do not overload a string with "yes/no/other values"; use multiple fields if that's necessary. (See near miss about incorrect safeguarding declaration being displayed to the provider)