It means “friend of the court”. The person is not a party to the case in any manner. His sole purpose is to assist the court by providing substantial information or insight for the smooth disposal of the case.
Deceptive practices are those practices that are undertaken to deceive the consumers. There are various tactics used by people with the aim to sell their products, the advertisements made are so fancy that people actually want to buy.
The debarment is the state where you can exclude from enjoying all those privileges, rights, the position of the practices and those acts which perform prevention by the legal means.
A warning; caution
