Using the Check Box button in the command bar, the user can now check the privileges he has on the record.
It also provides the details on how he has that particular privileges on the record, either through Security Roles assigned directly or through the team user is part of or through the Hierarchy security.
To see it in action, open a record and select Check Access
E.g. the below user has Read, Write, Create, Delete, Append, Append To, Assign, Share rights on the contact record, assigned directly as he has the system administrator role.
The admin user can also use the User lookup to check the access of the other users.
Here the test user 1 has rights to the record through the security roles assigned to him directly and also through the team he is part of.
Get all the details here –
Hope it helps..