How to run Custom fetch XML SSRS reports with administrator context irrespective of security role of the user in MS CRM 2016 online

Hi All,

In our project we have requirement to run the custom fetch XML SSRS report with administrator context irrespective of security role of the user

 Scenario 1: Lets us say a user with executive role is having access only 20 records in case entity and user with admin is having access on all the case records.

Here the thing is we have custom fetch XML SSRS report on case details in our CRM system, while we are running this reports with user with executive role it is showing only 20 records in case entity which he has access as expected But our requirement is run the report under Admin context so that who ever the user run the reports it will show all the case details.

Our environment : 2016 online

Please suggest me  better solutions for the above requirement