There are several possible reasons this can occur. Below are some of the situations we encounter.
The information you provided involves a suspect currently involved in an active investigation. Acting on your information may jeopardize a larger investigation already in progress. Unfortunately, when you call, we cannot reveal this information. When the caller sees no action, they feel they were ignored when in fact, their information was important to the case. Because of the confidentiality of investigations, the caller providing the information may never know how important the information was.
Sometimes a caller will provide information that is "current" active drug activity. Although this information may be current, it may be held until an opportune time do to extenuating circumstances involved in an investigation. It may take several months or as much as a year before the effects of this information can be productive.