Politiet er her.

It is built into politiet.

In Norwegian, the definite article is often added to the end of the noun instead of written as a separate word.

• politi = police / a police force
• politiet = the police

So -et is the definite ending here. That is why there is no separate word for the.

Grammatically, it is usually treated as a singular neuter noun in Norwegian when it means the police as an institution or collective.

That can feel strange to English speakers, because English uses plural agreement:

• English: The police are here
• Norwegian: Politiet er her

So even though English uses are, Norwegian uses the noun politiet, which is not a regular plural form in this sentence.

If you said politiene, that would usually mean the police forces in different places, which is a much less common meaning.

Usually it means the police as an authority or as a group, not just one individual officer.

So Politiet er her normally means something like:

• the police have arrived
• the police are present

If you specifically want to talk about one police officer, Norwegian would usually use a more specific noun such as en politibetjent.

Er is the present tense of å være = to be.

It means am / is / are, depending on the subject.

Norwegian does not change the present-tense form of the verb the way English does:

• jeg er = I am
• du er = you are
• han er = he is
• vi er = we are
• de er = they are

So in Politiet er her, er is simply the correct present-tense form.

Because her means here in the sense of location, while hit means to here in the sense of movement toward this place.

So:

• Politiet er her = The police are here.
  (They are located here.)
• Politiet kommer hit = The police are coming here.
  (They are moving toward here.)

This location-vs-movement distinction is very common in Norwegian.

Yes, that is grammatical, but it has a slightly different feel.

• Politiet er her = neutral statement, The police are here
• Her er politiet = more like Here are the police or The police are here with extra emphasis on here

This happens because Norwegian often allows elements like her to come first, but then the verb still stays in second position. That is a basic Norwegian word-order pattern.

So both are possible, but Politiet er her is the more neutral version.

A learner-friendly approximation is:

po-li-TI-et er her

A few helpful points:

• The stress in politiet falls on TI.
• politiet has four syllables: po-li-ti-et
• her is not pronounced like English hear
• her is closer to hehr or sometimes roughly like hair, depending on how you hear Norwegian sounds

Exact pronunciation varies by dialect, but that approximation is a good start.

No. Norwegian does not capitalize common nouns the way German does.

It is capitalized here only because it is the first word of the sentence.

So:

• Politiet er her.
• Jeg tror politiet er her.

In the second sentence, politiet is not capitalized because it is no longer at the beginning.