Security Filter based on admin and user

[G_S]

I am having a table called Employee

I have key value as [Email]

[Role] column 

I want to set a security filter that Admin role people can see all records and user can see only their records 

I used below expression but it throws error 

Expression which is used :

IF(IN(USEREMAIL(),SELECT(Employee[Email ID],[Role]=Admin)),TRUE, [Email ID] = USEREMAIL())

Please suggest correct expression !