said by jc10098:The whole definition of a warrantless is the absence of a judge's signature. If you read the statement you quoted, the verbiage is emphatic about these types don't typically involve a judge.
So either they've factored in that to their estimates or the amount having a signature are negligible. Maybe the other 32 percent are signed and follow protocol? Then, they aren't considered warrantless.
Typically don't, according to Google. In my/our city's case, they dp require a subpoena and I'm sure they do in other jurisdictions as well.
To say "68 percent" are warrantless, as in without a judge's signature, is/can be misleading.
If Google is all about transparency, I'd like to see the amount of subpoenas that require or had a judge's signature affixed to the subpoena.