Answer
Under Article 8 of the Revised Penal Code, a conspiracy exists when two or more persons come to an agreement concerning the commission of a felony and decide to commit it. As a general rule, conspiracy and proposal to commit a felony are not punishable by themselves; they are punished only in the specific cases where the law specially provides a penalty for them, such as conspiracy to commit treason (Article 115), rebellion, or sedition.
When conspiracy is established as the means of committing a crime, it carries the doctrine that the act of one conspirator is the act of all — each conspirator is liable as a co-principal, regardless of the extent of his individual participation, once the common design is proven. Conspiracy may be shown by direct proof or inferred from the coordinated acts of the accused pointing to a joint purpose and design.