When it’s time to hire a new Nanny you haven’t worked with before, be sure to cross-reference check her background before employing her (this is highly important)First: talk to her previous employer face to face. If this isn’t available, talk to a few of her previous customer on the phone. Request a list of her previous customer if she’s an independent nanny.Second: Perform a nanny background check. Look up her qualification, education, family history, credit check, possible crimminal history etc using the Internet or private eye. You’re letting a stranger take care of your kids, so don’t be afraid to be thorough.