Legality
Arrest is a legal term with specific procedures. It usually requires probable cause to believe a crime has been committed. Apprehend is a broader term that can refer to taking someone into custody for any reason, not necessarily criminal.
Formality
Arrest is a formal process with specific rights for the person being arrested. Apprehension can be more informal, like stopping someone suspected of shoplifting.
Context
Arrest is most commonly used in law enforcement situations. Apprehend can be used in other contexts, like apprehending a runaway teen or apprehending a suspect during a security operation.
Key differences
| Feature | Arrest | Apprehend |
|---|---|---|
| Legality | Formal legal term | Broader term, not necessarily legal |
| Formality | Formal process with rights | Can be informal |
| Context | Law enforcement | Various contexts |