++++ 1 . Officials - Recruitment - Appointment in grade and classification in step - Taking into account of previous experience - Rules laid down by the Commission - Appointment to the higher grade in the career bracket - Discretion of the administration ( Staff Regulations, Arts 31 and 32, second paragraph ) 2 . Officials - Remuneration - Reclassification undertaken in compliance with a judgment of the Court - Salary arrears - Entitlement to default interest - None unless the sum owed is certain or ascertainable