It's one thing for an SOD tip to put a cop at the right place at the right time to observe a transaction or pull over a car driven by a guy with warrants out.
It's another thing entirely for an SOD tip to be the totality of probable cause, and for the police to lie to prosecutors or prosecutors lie to a judge about it.
The latter case sounds much less likely to me, given the effort these slide decks show of LEOs trying to stay within the confines of the law (I don't happen to agree with where those confines are, but the evidence we have shows the DOJ paying at least lip service to it).