I don't have a link, but I just talked to a law enforcement officer in the NW. I told him I was asking about Deorr, but also in general.
In cases where a child is missing, and considered missing and endangered (not a runaway), the case is considered to be the highest priority. Deorr fits this criteria. An officer will be with the parents during the day, and some type of victim advocate or officer will be with them during the night hours. There isn't one specific name or protocol, because he said it varies depending on the department and the case. He said that usually they keep this up until the child is found. Obviously in many cases, including Deorr's this isn't sustainable.
Hopefully this is helpful.