This is the 4468th most frequent German word.
kriminellen
"Kriminellen" means "criminals" in English.
In this sentence, 'Kriminellen' functions as the singular accusative form of 'Krimineller,' which is a masculine noun describing a person involved in criminal activity.
Der Polizist verhaftete den gefährlichen Kriminellen.
The police officer arrested the dangerous criminal.
Here, 'Kriminellen' is used as the plural dative form of 'Krimineller.' It refers to multiple individuals who were previously involved in criminal activities.
Die Organisation unterstützt ehemaligen Kriminellen bei ihrer Rehabilitation.
The organization supports former criminals in their rehabilitation.
In this usage, 'kriminellen' acts as an adjective modifying 'Netzwerke,' describing the networks as criminal.