Whether or not more money should be spent on this case is really down to whether the police think it is worthwhile I suppose.  They have to be in the best position to judge.

With regards to the parents leaving the children in the room whilst they had a meal in the same 'complex' I'm sure I'm not alone in remembering holiday camps in the 60s and 70s when it was accepted practice to leave children alone in chalets - does nobody remember the "baby crying in chalet number 123" notices that used to be held up in the cinema, theatre, bars and restaurants.

When 5 I walked to school on my own and when going out at the weekend being told, 'tea at 5".

Apart from the traffic I'm really not convinced that we live in more dangerous times than we did 50 years ago.