一些建議

建議您們參考這篇文章 (雖然這與樓主的問題有一些差異但是
請特別注意這段話
Security has no more authority than an ordinary citizen, in most states. At best, security officers can ask rule violators to leave the premises and not return. Unless a state statute specially allows for it, security officers cannot detain someone or take him or her into custody unless they have committed a crime. If a crime is committed then the officer must make a citizen's arrest before detaining a person. To legally make a citizen's arrest, a minor crime (misdemeanor) must have been committed in the presence of the person making the arrest. Security officers cannot rely on another person’s word that a misdemeanor crime occurred.


資料來源
http://www.crimedoctor.com/shopping_center_security_1.htm