Final answer:
The security guard made a lawful arrest, and Heidi committed the crime of shoplifting, which could cause the department store to increase its security measures.
Step-by-step explanation:
Regarding the scenario where Heidi was apprehended by the security guard for taking a bracelet from the department store and placing it inside her pocket, the security guard made a lawful arrest; Heidi committed the crime of theft, which is more specifically termed shoplifting in this context. Shoplifting involves taking goods from a retail establishment without paying, and security guards often have the authority to detain individuals suspected of committing such acts until law enforcement arrives. The presence of the stolen item upon searching Heidi confirms her action of shoplifting. The impact on the department store could be quite significant; it could lead to increased security measures to prevent similar incidents in the future. Enhancing security not only deters theft but also provides a sense of safety for customers and staff, which could affect the shopping experience and the store's finances due to the amount spent on additional security.