Section 393.400 - Surreptitious electronic surveillance; exceptions1. Except as otherwise provided in subsection 2, it is unlawful for a person to engage in any kind of surreptitious electronic surveillance on any property of a public school without the knowledge of the person being observed.2. Subsection 1 does not apply to any electronic surveillance:(a) Authorized by a court order issued to a public officer, based upon a showing of probable cause to believe that criminal activity is occurring on the property of the public school under surveillance;(b) By a law enforcement agency pursuant to a criminal investigation;(c) By a peace officer pursuant to NRS 289.830;(d) Which is necessary as part of a system of security used to protect and ensure the safety of persons on the property of the public school; or(e) Of a class or laboratory when authorized by the teacher of the class or laboratory.Added to NRS by 1993, 2138; A 2015, 575, 3667; 2017, 595Amended by 2017, Ch. 129,§4.5, eff. 5/25/2017, op. 7/1/2018.Amended by 2015, Ch. 533,§4, eff. 1/1/2017.Amended by 2015, Ch. 147,§4, eff. 1/1/2016.Added to NRS by 1993, 2138