Canada

Canada has unreasonable search and seizure protections

It’s section 8 of the Charter

However our next PM (polling wise) said this when speaking to police in regards to the constitution limiting their powers

“We will make them constitutional, using whatever tools the Constitution allows me to use to make them constitutional. I think you know exactly what I mean,” Poilievre told the crowd.

Yeah, I do understand that we, like the US, also have a Constitution. Do you? Our Constitution includes a Charter of Rights and Freedoms which protects against unreasonable search and seizure. You should look it up sometime. Here's a starting point from the Canadian Encyclopedia:

https://www.thecanadianencyclopedia.ca/en/article/constitution

Edit: I should also say that protections against unreasonable search and seizure long predate the Canadian and US Constitutions and are derived from our countries' common lineage back to England. If you are ever confused about why Canada and US have many similar rights and freedoms, it is because both Canada and the US were British colonies before achieving independence.