Mobile Crisis for Polk county is operated through Broadlawns.
"Mobile crisis provides voluntary, community-based mental health assessments and short-term crisis management for children, youth, and adult. This service is designed to assist law enforcement in handling behavioral health-related calls. The team includes behavioral health specialists, therapists, social workers, and registered nurses.
What to Expect: One team member will respond with local police within one hour
Hours: 24/7, 365 days a week
Area of Operation: Polk County
How to Access: Call 911 and request the Mobile Crisis Response Team"
https://www.broadlawns.org/clinics-and-services/mental-health/crisis-services