der Polizist
police officer
A male police officer whose job is to maintain public safety and order and to investigate crimes.
Ein Polizist regelte den Verkehr an der Kreuzung.
A police officer directed traffic at the intersection.

police officer
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police officer
A male police officer whose job is to maintain public safety and order and to investigate crimes.
Ein Polizist regelte den Verkehr an der Kreuzung.
A police officer directed traffic at the intersection.

'Der Polizist' (the police officer) is a weak noun (n-declension). This means it takes the ending '-en' in the accusative, dative, and genitive singular. This pattern applies to many masculine terms for people that end in '-ist.'
Ich frage den Polizisten nach dem Weg.
I ask the police officer for directions.
The word is derived from 'die Polizei' (the police). The ending '-ist' is often used in German to refer to a person who practices a certain profession or belongs to a certain group.
Ein Journalist schreibt für eine Zeitung, ein Polizist arbeitet für die Polizei.
A journalist writes for a newspaper; a police officer works for the police.
Common verbs with 'Polizist' (police officer) describe typical police activities. These include 'den Verkehr regeln' (to direct traffic), 'eine Anzeige aufnehmen' (to take a report), and 'einen Unfall aufnehmen' (to record an accident).
Nach dem Diebstahl nahm ein Polizist unsere Anzeige auf.
After the theft, a police officer took our report.
police
'die Polizei' and 'der Polizist' belong to the same area, but they do not mean the same thing. 'die Polizei' is the institution, meaning the authority, or sometimes also the police station as a place. 'der Polizist' is an individual male person who works for the police. Learners can easily confuse the words because in many situations you deal with both. If you mean the authority or the emergency call, you say 'die Polizei'. If you mean one individual person, you say 'der Polizist'.

Im Zug fragt ein Polizist den Mann nach seinem Ausweis.
On the train, a police officer asks the man for his ID.
Nach dem Unfall ruft der Fahrer die Polizei.
After the accident, the driver calls the police.