[Ralfp]

Can they force a blood test on you? I know in my country (Poland) they can arrest you and take you to lab for blood test if they have justified suspiction.

[foepys]

If you just say "no" and don't show signs, they can't. If you say "only in my bloodstream", they can and will.

[heavenlyblue]

> don't show signs

Like for example being Polish.

[atatatat]

If I'm not a citizen of the land I'm in, I expect the worst. Because the worst can happen should diplomacy break down, and it often does.