To ensure compliance with chapters 246-335 WAC and 70.127 RCW, the department may:

(1) Conduct unannounced surveys at any time and at least once during a licensure period, except for agencies approved through substantial equivalency according to WAC 246-335-350;

(2) Survey a licensee at any time if the department has reason to believe the licensee is providing unsafe, insufficient, inadequate or inappropriate client or patient care;

(3) Investigate any person suspected of advertising, operating, managing, conducting, opening or maintaining an in-home services agency or providing in-home services, including hospice care center services, without a license unless exempt from licensure under RCW 70.127.040 and 70.127.050;

(4) Investigate complaints against in-home services licensees that allege noncompliance with chapter 70.127 RCW and this chapter;

(5) Investigate allegations of noncompliance with RCW 43.43.830 through 43.43.842, and, when necessary, in consultation with law enforcement personnel; and

(6) Require the licensee to complete additional criminal history background checks and disclosure statements for an individual associated with the licensee or having direct contact with children under sixteen years of age, people with developmental disabilities, or vulnerable persons if the department has reason to believe that offenses specified under RCW 43.43.830 have occurred since completion of the previous disclosure statement and criminal background inquiry.