What delay, other than the suspect not giving up the location of the child? From what I've seen on TV etc, the community and the Police have made a lot of progress in a relatively short space of time.
There is not "so much delay". The police are doing everything they can. They've arrested someone who may or may not be involved. They are searching the area using all the man power they've got and having drafted in additional man power. They've put out public appeals and erected road blocks. What else, precisely, are they meant to do?