What is the main focus of Customs and Border Protection (CBP)?

The main focus of Customs and Border Protection (CBP) is on national security and immigration enforcement. CBP plays a critical role in safeguarding the United States' borders while facilitating lawful trade and travel. This includes preventing illegal immigration, human trafficking, and smuggling of goods, which are essential components of national security. The agency works to detect and deter threats to security while ensuring that legitimate commerce and travel can occur efficiently.

The other options do not accurately reflect CBP's primary responsibilities. For instance, state law enforcement and public safety are typically handled by state and local agencies. Federal criminal investigations, while within the broader context of law enforcement, are not the primary focus of CBP which is more directed towards customs and border-related activities. Disaster response and management typically fall under agencies specifically tasked with emergency management and disaster response, rather than CBP's scope of work.