In reply to Submit to Gravity:
> Tulisa has been charged, while the police didn't want to know about Nigella's confessed cocaine use. AFAIK, Tulisa has been accused of supplying drugs (as in, she knew someone who could get some), while Nigella just used them (albeit with some involvement of her children, IIRC).
It's not an offence to "know someone who can get drugs". It is an offence to be concerned in the supply. Tulisa is alleged to have not just volunteered a number but provided the introduction and explained what to ask for.
Nigella has admitted historic possession offences. All other allegations were aabout drugs paraphenalia etc.
> Is the main difference in the approach of the authorities the background of the two individuals?
Different offences and different amounts of evidence.
Though I see the Met are looking into the Lawson case.