The phrase "active police force" is correct and usable in written English.
It can be used to refer to a police department or unit that is currently operational and engaged in law enforcement activities.
Example: "The city has invested in an active police force to ensure the safety and security of its residents."
Alternatives: "operational police unit" or "functioning law enforcement agency".
They should be able to make a tidy profit on their initial real estate investment; Maplewood is still the friendly town they have known all their lives; their son is an active member of our police force, and they are active members of the community.
"We want a proper government that can be active, with a good police force," said Amadullah, 35, a trader.
A self-described "pragmatic progressive," Mr. Myrick has been active in reorganizing the police force, restructuring city government and attracting $200 million in new development to the city, including a multimillion-dollar overhaul of its central commons.
A civilian commission in charge of weeding out corrupt officers has asked for background on the nine top-ranked active generals in the police force, including José Ricardo Ramírez del Cid, a former police chief in 2011 who is named in the case files as the mastermind behind the assassinations.
Turkish media identified the gunman as Mert Altintas, an active member of Ankara's police force who was off-duty at the time of the attack, contradicting earlier reports from Turkish officials claiming the gunman had entered the event by impersonating a police officer.
"The real reason cybercriminals are so active is that police forces, hamstrung by the inefficiencies introduced by Action Fraud and the NFIB, are not a credible deterrent".
I haven't seen arrests in person, but the police force is very active in this area.
His police force currently has 1,600 active agents.
The colonel was on active duty as the head of the paramilitary police force in central Kayseri province when he was arrested, the semiofficial Anatolian Agency reported.
And the police force has again played the most active role in preserving the racial order of Ferguson.
