A more thorough explanation:

Definition: Concourse refers to the simultaneous existence of two legal actions based on the same facts. It can also refer to a conflict among creditors or claimants.

• A private party may prosecute for an offense committed against them, even if the public prosecutor refuses to prosecute at the public expense. However, the concourse of the public prosecutor is necessary, and it cannot be refused. This means that the public prosecutor must agree to the private party's prosecution.
• In a concourse proceeding, two or more creditors claim an interest in a fund or estate. They must sort out and adjudicate all the claims on the fund.

These examples illustrate how concourse can refer to legal actions and conflicts among parties. In the first example, the private party and public prosecutor must work together to prosecute the offender. In the second example, creditors must resolve their claims to a fund or estate.