That’s a Groenendale, or what the AKC calls the Belgian Shepherd (really the general name for all of the type).
That’s a Groenendael, not a Malinois. Today, to see Groenendaels in police work is very rare. Both are considered Belgian shepherds, but the 2 varieties are very different in working capability. There are 2 other varieties, the Tervuren and the Laekenois. The Groenendael is known as the Belgian Sheepdog in AKC parlance.