Nanny or caregivers should never be hired on the spot. A background check that includes social security number accuracy, criminal record information, nationwide sex offender list, references, first aid/CPR verification, swimming level verification, driving record and education verification should be conducted. Various companies offer services, but it’s still important to check in with references regarding punctuality and ability to follow through on commitments and general attitude, among other important topics. Once a nanny background check is complete and references have responded, fine-tuning the process by checking things like first aid/CPR and swimming level verification can ensure the perfect hire.