Am I being detained? Equivalent phrase in Polish language.

Is there a equivalent of " am i being detained or am I free to go" in Poland
If so how do I say it?

You can try this below (best to print it on paper so that you don't have to say anything ;):

Jestem aresztowany, czy mogę pójść wolno?

Czy jestem zatrzymany? Czy mogę już iść?

My best bet would be:

Detained - Zatrzymany do chwili wyjaśnienia - literal translation would be "Arrested until clarifying".

The question You've written in apostrophes would be: "Jestem zatrzymany czy mogę iść wolno?". It's most likely to-the-life translation :)

We're talking about Police 'aight?

PS. Comma in what You wrote, Nathans would be considered an interpunction error :)

I dare to disagree. :)

Then You're mistaken too.

Either "Jestem aresztowany? Czy mogę pójść wolno?"(two sentences) or "Jestem aresztowany czy mogę pójść wolno?" (one sentence).

"Zatrzymany" is closer to the British word "arrested".

Hold into custody?

Remanded in custody is closer to "areszt", as in "areszt śledczy" although there are subtle differences.

The legal concepts differ as well as the actual procedures.

You're right, Rubaszny and I was wrong. It's "zdanie wtrącone" in polish grammar and a comma has its right place here. Being native Pole still demends me to learn the language. I here stand corrected. Thank You.

Still the two examples i provided are correct grammar-wise. Or not? I have doubts about the "one sentence" one.

Thanks for clarifying, Jon.

No worries, I learnt these distinctions the hard way :-)

Although there are legal differences from place to place, it pretty much feels the same.