It is indeed very sad to hear such news. In many countries, monks are highly regarded and respected. In the southern tradition, when monks come out to "beg" for food, many people will give them food and ask for blessing. However, monks don't ask for money in such a way. But obviously many don't know about this and they are very puzzled as to whether they should donate.
On the other hand, it is good to hear that the authorities are taking this matter seriously and nab those people who took advantage of this. Not only they stop the confusions in the donors, it also stop the bad karma collected by faking a monk.