Bristol University student accidentally made explosive per BBC News

This BBC report http://www.bbc.co.uk/news/uk-england-bristol-38991983 leads me to ask two questions. Read it, here's the key part:

'University buildings were evacuated when a student accidentally made the same highly explosive substance that was used in the Paris terror attacks.

An investigation by Bristol University has found that triacetone triperoxide (TATP) was "unintentionally formed during a routine procedure".'

Are you, like me, asking how one accidentally makes the explosive TATP?

Are you also asking what routine procedure lead to the unintentional forming of TATP?

Do you think there might be more to this story than we're being told?