Introduction

Merger and Conspiracy

Introduction

When people agree to commit a crime and then carry it out, the prosecution has two separate wrongs to work with: the agreement, which is the basis of a conspiracy charge, and the completed offense that the agreement aimed at. The practical question is whether the state may convict on both or must pick one. A jury that hears evidence of a planned robbery followed by an actual robbery could find each offense proven. The answer decides whether the defendants leave court with one conviction or two, and whether their sentences can be stacked. The criminal law has given opposite answers to that question at different times, and a student who carries the old answer into a modern problem will misstate the law.

The traditional merger doctrine supplies the old answer. Under it, when the conspirators carried out and completed the substantive offense that was the object of their agreement, the conspiracy merged into the completed crime. The participants could be convicted of the substantive offense, but the law did not allow a separate conviction for conspiracy based on the same agreement and the same completed offense.¹ Merger, in this sense, means that a lesser wrong is absorbed into the greater wrong it produced and no longer stands as an independent ground for conviction. The prevailing modern answer runs the other way: conspiracy is a separate offense that does not merge into the completed crime, so the state may convict and punish for both.² On a modern exam, the second answer is the one to apply, and the first matters as the background that explains it.

This chapter follows the doctrine in the order it developed. It starts with the old rule and the reasons it once made sense, then turns to why courts and legislatures abandoned it. After that it states the modern no-merger rule and the justification offered for keeping conspiracy distinct from the offense it aims at. It closes by sorting conspiracy from other doctrines, such as attempt and lesser included offenses, where merger or a merger-like bar still operates. The first step is the traditional rule itself, which requires seeing how it worked when the conspirators succeeded and what the law was protecting when it refused a second conviction.