An officer is someone in charge of others. A police officer is in charge of making sure people obey the law. Military officers are in charge of their units. Here are some sentences.
The officer arrested the robber.
The police officer handcuffed me with the handcuffs. Ta-dah! There is a sentence with the word hand-cuffs in it.
The officer took the criminal down to the precinct.
the police officer gave a citation
The police officer gave the man a ticket for jaywalking.
The undercover officer couldn't have looked more blowzy.
An officer of the Border Patrol will inspect your cargo.
The police officer had suspense when the suspect stuttered when he talked.
The insubordinate soldier repeatedly interrupted his commanding officer.
The impostor was discovered. He said he was a police officer, but turned out to be an imposter.
One officer was busy subduing one criminal, while a second officer chased the other suspect.
"You are under arrest!" said the police officer.