Final answer:
Officers should request either an Illinois State Police Emergency Network (ISPERN) broadcast or a local broadcast depending on the age of the offense.
Step-by-step explanation:
Officers should request an Illinois State Police Emergency Network (ISPERN) broadcast for offenses occurring within the last ______ or a local broadcast for offenses older than that.
The missing term in this question refers to a time period, which is not specified. However, the question implies that officers should request a state broadcast for recent offenses and a local broadcast for older offenses. This could be a practical approach as state broadcasts may prioritize recent incidents while local broadcasts can focus on older cases.