This is the 11872nd most frequent Polish word.
kryminalnego
"Criminal" (adjective form).
"Kryminalnego" functions as an adjective describing "tematu" to indicate the thematic focus on crime in the magazine.
Czytałem interesujący artykuł w czasopiśmie kryminalnego tematu.
I read an interesting article in a magazine of a criminal theme.
Here, "kryminalnego" is an adjective modifying "eksperta" to qualify the expert as being specialized in crime investigation.
Śledztwo kryminalnego eksperta naprowadziło na nowe tropy.
The investigation by the criminal expert led to new leads.
The word "kryminalnego" is used as an adjective modifying "pochodzenia" to describe the type of origin related to crime.