I think that that's actually how it works here in Sweden.
I seem to remember that it's also not always good. Since they only answer questions, more open ended searches are seldom performed.
In one case where an elk killed a woman (unique case, apparently) the police got hung up on her husbands lawn mower (!) which happened to have traces
of blood on the blades (which in fact could have been rust combined with other biological material ) and spent a year or so trying to convict him for murder,
until someone actually saw a YouTube clip of an elk-attack and asked the lab if it could have in fact been an elk. Answer: Yes. Most likely.