1. A brief or expedited inquiry into a matter, typically conducted with speed rather than exhaustive detail
The police conducted a quick investigation at the scene of the accident.
A polícia realizou uma investigação rápida no local do acidente.
2. A preliminary or surface-level examination of facts before a more thorough study
We performed a quick investigation before deciding whether to pursue the case further.
Realizamos uma investigação rápida antes de decidir se deveríamos prosseguir com o caso.