I know this is a bit nit picky, but something really annoys me about this reporting (and The Guardian isn't alone on this).
"A single mother put police and journalists to shame..."
What is the relevance of "single mother"? It seems to me to say that EVEN a single mother can put the police to shame, hence implying that single mother are not very bright because even they can outsmart those clever police.
What does being single or being a mother have to do with her blowing the gaff on these fraudsters?