WA law is interesting...RCW 9.41.280 concerns weapons on school property, and contains these exemptions:
"(3) Subsection (1) of this section does not apply to:
(a) Any student or employee of a private military academy when on the property of the academy;
(b) Any person engaged in military, law enforcement, or school district security activities. However, a person who is not a commissioned law enforcement officer and who provides school security services under the direction of a school administrator may not possess a device listed in subsection (1)(f) of this section unless he or she has successfully completed training in the use of such devices that is equivalent to the training received by commissioned law enforcement officers;
(c) Any person who is involved in a convention, showing, demonstration, lecture, or firearms safety course authorized by school authorities in which the firearms of collectors or instructors are handled or displayed;
(d) Any person while the person is participating in a firearms or air gun competition approved by the school or school district;...." (there are more)
It appears to me that all a teacher would need is to be assigned an aditional duty of "school security" and as long as that teacher did NOT possess an electric stun device ((1)(f) he/she would be fine.
"(3) Subsection (1) of this section does not apply to:
(a) Any student or employee of a private military academy when on the property of the academy;
(b) Any person engaged in military, law enforcement, or school district security activities. However, a person who is not a commissioned law enforcement officer and who provides school security services under the direction of a school administrator may not possess a device listed in subsection (1)(f) of this section unless he or she has successfully completed training in the use of such devices that is equivalent to the training received by commissioned law enforcement officers;
(c) Any person who is involved in a convention, showing, demonstration, lecture, or firearms safety course authorized by school authorities in which the firearms of collectors or instructors are handled or displayed;
(d) Any person while the person is participating in a firearms or air gun competition approved by the school or school district;...." (there are more)
It appears to me that all a teacher would need is to be assigned an aditional duty of "school security" and as long as that teacher did NOT possess an electric stun device ((1)(f) he/she would be fine.