Final answer:
Bank robbers are classified as amateur or professional based on their knowledge and execution of the robbery, including factors such as planning, method of entry, weapon use, disguise, escape plan, and previous criminal history.
Step-by-step explanation:
Bank robbers are classified as amateur or professional based on their knowledge and execution of the robbery. Amateur bank robbers may lack experience and often make simple mistakes or use ineffective methods, while professional bank robbers are skilled, well-prepared, and execute their plan with precision.
Characteristics that police officers use to classify bank robbers include factors such as planning, method of entry, weapon use, disguise, escape plan, and previous criminal history. A professional bank robber, for example, may carefully study the bank's layout and security measures, use advanced tools to break into vaults, and have a well-coordinated escape plan.
By evaluating these known characteristics of the robbery, police officers can determine whether the bank robber is an amateur or a professional.