The term 'certain whistle blower' refers to a person who is employed in a certain capacity and has the responsibility of reporting any illegal or unethical activities that they may witness. The three letter acronym for this job is 'REF'. A whistle blower is someone who is willing to take the risk of speaking out against wrongdoings, even if it means putting their own safety and career at risk. They are an important part of maintaining ethical standards in the workplace.