A police record extract can be requested:
https://polisen.se/en/Languages/Service ... -Extracts/
Only the individual concerned can apply and their Swedish National Registration Number is required.
It's worth noting that in Sweden older offences are deleted from criminal records after 3, 5, or 10 years, if no more recent convictions have been added:
- Custodial sentences 10 years from date of release,
- Enforced psychiatric treatment 10 years from date of release,
- Youth detention 10 years from date of release,
- Suspended sentences 10 years from date of decision,
- Discontinued charges (adults) 10 years from date of decision,
- Fines 5 years from date of decision,
- Discontinued charges (minors) 3 years from date of decision.
Such deletions are probably less of a concern in the case of an au pair because she would be too young for the relevant time period to have expired.