Police suspect that Lucy is trafficking marijuana from her third-floor apartment. Officers on the bicycle path have observed for several days a suspicious plant basking in the sunlight of Lucy's third-floor balcony. Officers have confirmed through their liaison with apartment management that Lucy is a legal tenant of the apartment. In addition to the plant, officers have also observed that a number of visitors knock on Lucy's door, shake hands with her, and leave with a small brown package. These officers are trained in drug and narcotics identification and believe that Lucy's plant and apartment activity are consistent with those of a drug trafficker. What should the officers do?