At your service, the Cortex Security & Courtesy Patrol Team!

Cortex Courtesy Patrol Team: Left, Anthony (Tony) Chumbley; Right, Derek Tranker.

Welcome Tony and Derek, our Cortex Security & Courtesy Patrol team. Don’t hesitate to say hello when you see them riding around campus on bikes, in their snazzy new uniforms, ensuring the safety and security of the Cortex district. They are always available, friendly, and highly dedicated to their jobs. Check out some background information about our Cortex Security & Courtesy Patrol team members.

Anthony Chumbley, Cortex Security & Courtesy Patrol Manager, is a proud father of three who has been married for thirteen years and has been a security officer for over six years. Being from St Louis, one of his favorite hobbies is watching hockey. He also remodels houses on the side. He is excited to provide security to the district and is always willing to engage with Cortex employees.

Derek Tranker, Cortex Security & Courtesy Patrol Officer, is from a small town in Germany, spent a lot of his youth traveling, and is former US Air Force. He’s been working security for about five years and loves it. Outside of work, Derek enjoys a number of hobbies, including participating in car shows, cruise-ins, playing Airsoft, and helping out his folks. He currently holds an Associate’s Degree in Applied Sciences and is working towards a secondary degree. Outgoing and friendly, Derek is always up for getting to know new people and having a laugh. Don’t hesitate to stop him and say hi!

In an emergency, don’t wait, CALL 911.

For non-emergency, general questions about safety or security issues in the district:
Contact Tony at 314.601.4131 during regular business hours or email him anytime at
Friday to Sunday, contact Derek Tranker at 850.499.1194 or email him at

For building-related security or safety concerns, please contact your on-location building security.

For safety or security concerns related to Metro, text Metro Public Safety 24/7 at 314.300.0188.

Photo credit: Metro Transit / Cortex Staff