Concurrence in criminal law means that a person’s intent to commit a crime and the criminal act itself happen at the same time. This rule helps courts decide if someone should be held legally responsible for a crime. Both parts — the guilty mind (mens rea) and the guilty act (actus reus) — must exist together for a crime to happen.
For example, if someone plans to steal and then actually takes something, that is concurrence. The person had the intent (to steal) and committed the act (taking the item) at the same time. But if someone takes something by accident and later decides to keep it, there is no concurrence, because the intent came after the act.
Courts use concurrence to make sure a person is not punished unfairly. It protects people who may have made a mistake without bad intentions or had bad intentions but didn’t act on them. Without both intent and action happening together, a crime under the law is not complete.
Key Takeaways
- Concurrence means the guilty mind (mens rea) and guilty act (actus reus) must happen at the same time.
- It is a required element for proving criminal liability in most crimes.
- There are two types: temporal concurrence (intent and act occur together) and motivational concurrence (intent drives the act).
- No concurrence = no crime. Intent before or after the act breaks the legal connection.
- Concurrence differs from causation: causation deals with the result; concurrence focuses on timing.
- Prosecutors must prove concurrence beyond a reasonable doubt for a conviction.
- Courts rely on actions, speech, and circumstances to determine if intent and act aligned.
Why Is Concurrence Required in Criminal Liability?
Concurrence is required because a person should only be punished when they intended to do something wrong and actually did it. The law does not punish thoughts alone or actions that happen without criminal intent. Both must occur together to prove someone is guilty of a crime.
This rule keeps the justice system fair. For example, if someone accidentally hurts another person without meaning to, they usually won’t face criminal charges. But if they hurt someone on purpose, and the act matches their intent, then criminal liability applies.
Concurrence protects against unfair punishment by making sure the legal system focuses on both mindset and behavior. It also helps separate accidents or honest mistakes from real crimes.
Types of Concurrence: Temporal vs. Motivational
Concurrence in criminal law can happen in two main ways: temporal concurrence and motivational concurrence. Both help courts decide if the intent and act were linked closely enough to prove a crime.
Temporal concurrence means the guilty mind (mens rea) and the guilty act (actus reus) happen at the same time. For example, if someone plans to hit another person and punches them right after forming that intent, the two elements occur together.
Motivational concurrence means the person’s intent leads directly to the act. The act must come from the intention. For example, if someone wants revenge and later commits a harmful act because of that anger, the act is motivated by the original intent.
Some crimes require only temporal concurrence, while others look at whether the intent truly motivated the action. Courts check these forms of concurrence to decide if a crime was really committed.
Examples of Concurrence in Criminal Cases
Courts use real and hypothetical examples to show how concurrence works. In every case, the person must have both the intent and the action at the same time.
Example 1 – Theft:
A person enters a store planning to steal. They take an item and leave without paying. The intent to steal and the act of stealing happen together. This is a clear example of temporal concurrence.
Example 2 – Assault:
Someone sees a person they dislike, decides to hurt them, and immediately punches them. The punch and the angry intent happen at the same time, showing both motivational and temporal concurrence.
Example 3 – No Concurrence:
A person accidentally takes someone’s phone thinking it’s theirs. Later, they decide to keep it. Since the intent formed after the act, there’s no concurrence. The person may not be guilty of theft under criminal law.
These examples help judges and juries understand whether a person acted with a guilty mind at the moment of the guilty act.
Situations Where Concurrence Fails
Concurrence fails when the intent and the criminal act do not happen at the same time. Without this link, a person usually cannot be found guilty of a crime under criminal law.
Example 1 – Intent After the Act:
Someone backs into another person’s car by accident. Later, out of anger, they say they meant to do it. Since the intent came after the act, there is no concurrence. The law sees this as an accident, not a crime.
Example 2 – Intent Before, but No Criminal Act:
A person plans to commit a robbery but changes their mind and walks away. Even though they had criminal intent, they didn’t act on it. Since there’s no actus reus, there’s no crime.
Example 3 – Mistaken Identity:
Someone picks up the wrong bag at the airport by mistake. If they realize it and return it, there is no criminal intent or act. If they decide to keep it after realizing it’s not theirs, the intent formed later, which may not meet concurrence requirements depending on timing and evidence.
Courts use these types of situations to show that timing matters. Without both the guilty mind and guilty act happening together, a crime cannot be proven.
Concurrence vs. Causation in Criminal Law
Concurrence and causation are two different legal requirements in criminal law, and both must be proven to establish guilt. Concurrence means that the person had a criminal intent (mens rea) at the same time they committed the criminal act (actus reus). It focuses on the timing of the intent and the action. On the other hand, causation is about whether the person’s action directly caused the harmful result. It focuses on the outcome of the act.
For example, if someone accidentally pushes another person who then gets injured, there may be causation because the act caused harm. However, there is no concurrence if the push was unintentional, so a crime cannot be charged. In another case, someone may intend to poison another person and secretly add poison to a drink. But if the intended victim never drinks it, then the concurrence is there (intent and action happened together), but the act didn’t cause harm—so causation is missing.
Courts require both elements to be present. The intent must match the action in time (concurrence), and the action must lead to the result (causation). Without this full connection, a criminal charge often fails.
Legal Tests and Burden of Proof Related to Concurrence
In criminal trials, the prosecution must prove that concurrence existed beyond a reasonable doubt. This means they have to show that the defendant had criminal intent at the same time they committed the criminal act. Without this link, the court cannot legally find the person guilty.
Judges and juries look for clear evidence that connects the mindset to the action. This can include what the defendant said, did, or planned right before or during the act. For example, if someone sends threatening messages and then attacks the person, the court may see this as proof of intent during the act.
The law places the burden of proof on the prosecution. They must present facts, not guesses. A defense lawyer may try to show that the intent came too early or too late, or that the act was an accident. If the jury believes there is reasonable doubt about the timing of intent and action, they must find the defendant not guilty.
Courts also give special instructions to juries to explain concurrence and how to apply it. These legal tests help make sure that only those who acted with a guilty mind at the time of a guilty act are punished under criminal law.