In this edition of APN, Arlington’s top-cop has been named to a state-wide commission to better understand substance abuse. We’ll tell you what Chief Fred Ryan plans to do to curtail what many call a “monumental crisis.”

And the area’s first medical marijuana dispensary is coming to town. Brenda Mahoney reports on how the facility will work and what Arlingtonians can expect.

And the state completes its river herring fish count with the help of an Arlington based group aiming to clean-up our waterways. Why is the tally so important to us? We talk to an expert for answers.