be subject to vs be subjected to?

"A school employee who has witnessed or has reliable information that a student or school employee has been SUBJECT TO any act of bullying or harassing behavior shall report the incident to the appropriate school official."

---＞ "a student . . . has been　SUBJECT TO any act of bullying" is a SUB-CLAUSE
　　　^^^^^^^^^　　^^^^^^^^
　　　(subject)　　(verb)　　　　(受到 act of bullying 影響)

“subject to” is an ADJECTIVE
"has been subject to" -- implies that "a student . . . has undergone an act of bullying"
______________________________________________________________________________________________________
"No student or school employee shall be SUBJECTED TO bullying or harassing behavior . . . . . . . ."
　　　　　　　　　　　　　　　　　　　
"subjected to" -- is a VERB form, written in the PASSIVE VOICE
"be subjected to" -- more strongly emphasizes that "student or school employee" is the DIRECT OBJECT of
"bullying or harassing behavior".
( because the verb more clearly expresses an action that is performed rather than describing a state or condition.)

Amendments: It is the duties of any school employee or student to notify the authority about bullying or harassing which will be subjected to legal action. Yip