"Area One Commander/Executive Officer Dion Boyd to Deputy Chief of Criminal Networks"
hmm, criminal networks…
from: https://chicago.cbslocal.com/2020/07/15/chicago-police-supt-david-brown-announces-shakeup-of-command-staff-amid-surge-in-gun-violence/
and just searching "chief criminal networks" to find out what that means, I found numerous stories describing him as this.