Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Staff_Roles (role_description VARCHAR, role_code VARCHAR)

### Question ###
What is the complete description of the researcher role.

### Accurate SQL ###

SELECT role_description FROM Staff_Roles WHERE role_code = 'researcher'