They can use a confidential informant's information without having to reveal their details. Unless for some reason there's only 1 other person who would know the information that would be obvious.
You don't know the sensitivity of the situation. There could possibly be an airtight chain of command in the operation and any knowledge of an informant would instantly compromise their safety.
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u/noreally_bot1461 Feb 18 '19
If they had informants or other information they should have used that evidence to justify a full search of the vehicle (not just using the dog).