Police say that a woman, who's believed to have given a bottle of bleach to a baby in Eltham, was wearing black trousers, black trainers, a long multi coloured top, a black jacket with white chevron type markings and was carrying maroon bag.
She has also been described as "a heavily built white female in her 50s with grey hair".
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The city is one of a small number which has seen an increase in traces of the Class A substance over recent years.
A goldfish from Buckinghamshire has survived an operation to remove a tumour. The surgery cost £200, the goldfish cost £3.
Most people woke up today to cold weather with heavy rain and cloudy skies.