Which of the following is considered a false statement in security practice?

The statement claiming that "Security officers have the same arrest powers as police" is indeed considered a false statement in security practice. In Texas, security officers do not possess the same legal authority as law enforcement officers. While they have the right to detain individuals on private property under certain conditions, their powers are limited compared to those of police officers, who have broader authority to arrest individuals and enforce the law.

Each of the other statements reflects aspects of security practice that are more accurate: security officers do require training to carry firearms legally, not all security officers are required to be licensed (as the licensing requirement can vary based on the nature of their employment or the specific duties they are engaged in), and security officers can only conduct searches under limited circumstances, such as with consent or when there is a reasonable belief that a threat exists. Thus, the first statement inaccurately equates the powers of security personnel with those of law enforcement officers, making it the false statement in this context.