Definition - What does Conspiracy mean?
Conspiracy is a term which may be defined as an illegal act done in collaboration (and intentionally) by a group of people. Conspiracy may take place when parties use illegal ways to achieve something legal or use legal ways to achieve illegal results.
Justipedia explains Conspiracy
In order to prove a conspiracy, it is important to first prove that people involved in the act did agree to the plan. Otherwise, it would just be taken as a set of independent illegal acts. Conspiracy can either be criminal or may take form of a civil lawsuit. An example of conspiracy is when a group of salesmen have agreed to a plot where they would be selling used and old phones as new. These salesmen can by sued by the purchaser for damages.