gyeongchari beullaekbakseuwa hyeonjang sajineul hwaginhaesseoyo.

이/가 is the subject marker. In this sentence, 경찰이 shows that the police are the ones who performed the action of checking.

A learner often compares 이/가 with 은/는:

• 경찰이 = the police are the subject of this specific action
• 경찰은 = as for the police... (more topic-focused, often with contrast or background information)

So 경찰이 블랙박스와 현장 사진을 확인했어요 feels like a straightforward statement: The police checked the black box/dashcam and scene photos.

와 means and when it connects nouns.

So:

• 블랙박스와 현장 사진 = the black box/dashcam and scene photos

A few useful points:

• 와 is used after a noun ending in a vowel.
• 과 is used after a noun ending in a consonant.

Examples:

• 사과와 바나나
• 책과 공책

In everyday speech, learners will also often hear 하고 or 랑/이랑 for and, but 와/과 is very common in writing and careful speech.

In Korean, two nouns are often placed together directly to make a compound-like phrase.

So:

• 현장 사진 = scene photos / photos from the scene
• literally, something like site photos

You can sometimes use 의 to show possession or relation, but Korean often leaves it out when the relationship is clear and natural.

Compare:

• 현장 사진 = natural, compact, very common
• 현장의 사진 = possible in some contexts, but less natural here

This is similar to how English says scene photos rather than always saying photos of the scene.

In 블랙박스와 현장 사진을, the whole noun phrase 블랙박스와 현장 사진 is the object of the verb, and 을 is attached to the last noun in that connected phrase.

So the structure is:

• 경찰이 = subject
• 블랙박스와 현장 사진을 = object
• 확인했어요 = checked

This is very normal in Korean. When nouns are joined by 와/과, the object marker usually appears once, at the end of the full list.

So 블랙박스와 현장 사진을 확인했어요 means the police checked both things.

확인했어요 is the polite past form of 확인하다, which means to check, to confirm, or to verify.

Breakdown:

• 확인 = confirmation/check
• 하다 = to do
• 확인하다 = to check / confirm
• 확인했어요 = checked / confirmed

Why 했어요?

Because 하다 changes like this in the past polite form:

• 하다
• 하였어요 (older/full form)
• 했어요 (contracted, normal modern form)

So 확인했어요 literally comes from 확인하였어요, but 했어요 is the standard everyday form.

Yes, 했어요 is past tense and polite.

The ending -어요 / -아요 is the standard polite conversational style, often called 해요-style.

So:

• 확인해요 = check / checks / am checking / will check (depending on context)
• 확인했어요 = checked

This style is very common in everyday speech, conversation, news-style summaries, and polite narration. It is polite but not formal-stiff.

More formal would be:

• 확인했습니다

More casual would be:

• 확인했어

Usually, no. In everyday Korean, 블랙박스 very often refers to a dashcam in a car.

So in a sentence involving police and a scene investigation, 블랙박스 most likely means:

• dashcam footage
• or the car’s black box recording device

Korean uses 블랙박스 much more broadly than English learners might expect. In real-life Korean, if someone says 차 블랙박스, they almost certainly mean a dashcam.

Korean is basically an SOV language: Subject–Object–Verb.

So this sentence is ordered like:

• 경찰이 = the police
• 블랙박스와 현장 사진을 = the black box/dashcam and scene photos
• 확인했어요 = checked

That is very normal Korean word order.

In English, the verb usually comes earlier:

• The police checked the dashcam and scene photos.

In Korean, the verb usually comes at the end:

• 경찰이 블랙박스와 현장 사진을 확인했어요.

Korean nouns usually do not have to show singular vs. plural explicitly.

So 경찰 can mean:

• a police officer
• the police
• police officers

The exact number depends on context.

In this sentence, English will often translate it naturally as the police, because that sounds more natural in many contexts. But Korean itself does not force that distinction.

If you really wanted to make plurality explicit, Korean could use something like:

• 경찰들 = police officers

But very often 들 is unnecessary.

A natural pronunciation is approximately:

• 경찰이 → 경차리
• 확인했어요 → roughly 화긴해써요

A few pronunciation notes:

1. 경찰이

   • The final ㄹ in 경찰 links into the following 이, so it sounds close to 경차리.

2. 확인

   • In normal speech, it often sounds closer to 화긴 than a slow, letter-by-letter 확인.

3. 했어요

   • This is commonly heard close to 해써요.

So the whole sentence may sound roughly like:

경차리 블랙박스와 현장 사지늘 화긴해써요

That spelling is only a pronunciation guide, not the correct written form.