Her "opinions " are not in question, but here we go on evidence. That can either be a proven track record (we all know not all sources can be acknowledged), or firm evidence such as a photo. To a detective, without one of those things, any info has to be analyzed, dissected, and held to be possibly untrue until proven. It isn't personal.
let's move on. I would love to see any real evidence though, if some appears, until then Germany remains a question.