Who has absolute and unrestricted discretion to choose who is prosecuted?

In most legal systems, the authority to decide who is prosecuted typically lies with the prosecutor's office, which has absolute and unrestricted discretion in prosecutorial decisions. This discretion allows prosecutors to determine whether there is sufficient evidence to pursue a case, prioritize certain cases over others, and decide on the charges to file. However, this power is often subject to legal and ethical standards, as well as oversight mechanisms to prevent abuse.