Collusion is the act of working with or getting help from someone else for a piece of work. This is different from including citations of another person’s opinions or work, as you are presenting the work, experience or opinions of another person or people as your own.
For example, if a friend has a great deal of knowledge about your assigned topic (e.g. a specialist surgeon at your workplace), and that friend helps you in your assignments, then you must give proper credit for their knowledge or opinions.
You may include quotes from a person who is experienced in your area of research, but they must be clearly indicated with quotation marks, an in-text citation, and a reference in the bibliography. Click the links to see examples.