The thief tried to break into the a trailer but it had electric fences. The thief died electrocuted and the owner of the trailer is being accused of murder (facing charges and trial).
I remember reading several others like this one, so this is real in Brasil.
"And so simple that I found lots of more or less similar stories..."
It is a hallmark of urban legends.
This story seems to originate with the case Bodine v. Enterprise High School, which involves a 19 year old on the roof of a high school who fell through a skylight covered with tar.
Not in the UK ("Filing his claim yesterday in California [...]"), and it seems that he didn't successfully sue (nothing reported, but I imagine it would get decent coverage if he won). Just a frivolous lawsuit by the looks of it.
More than likely this is just the police being overly cautious. The duty of care owed to a trespasser is fairly narrow, and the fact that it is a burglar may limit this further (e.g. if the burglar are injured by glass they broke, rather than an inadvertent trespasser falling onto exposed broken glass).
http://www.cidadeverde.com/asssaltante-morre-eletrocutado-do...
The thief tried to break into the a trailer but it had electric fences. The thief died electrocuted and the owner of the trailer is being accused of murder (facing charges and trial).
I remember reading several others like this one, so this is real in Brasil.