The purpose of notifying family members for questioning in criminal investigations is generally to understand the following situations:
The first is to understand the actual situation of the criminal suspect, such as daily work, life, contacts, etc.
The second is some information related to the case, such as the whereabouts of the items involved in the case, and whether there has been any behavior to cover up or conceal the facts.
The third is some situations related to the subsequent handling of the case, such as whether to hire a lawyer, whether to apply for compensation, etc.