Oregon Revised Statutes Public Health and Safety § 443.500

(1) The Department of Human Services or Oregon Health Authority staff shall be permitted access to enter and investigate complaints of abuse in all facilities registered under ORS 443.480 to 443.500 and to ascertain the facility's compliance with applicable rules, statutes, ordinances and regulations. If the department or the authority has reasonable cause to believe any facility is operating without registration or is in violation of ORS 443.480 to 443.500, the department or the authority may apply to the circuit court for a search warrant.

(2) Upon complaint of any person:

(3) The owner or operator of a facility may not retaliate against any individual who files a complaint or any witness or employee of a facility interviewed about the complaint, including but not limited to retaliation by restriction of a resident's otherwise lawful access to the facility and, with respect to an employee, retaliation by dismissal or harassment.