Lily Allen criticised police as she opened up about her seven years of torment by a stalker.
The singer, who was born in Hammersmith , told The Observer how officers had made her "feel like a nuisance, rather than a victim".
Alex Gray, of Perth, in Scotland, was this month convicted at Harrow Crown Court of harassment and burglary, and is due to be sentenced next month.
The Sheezus star told how she spent seven years living in fear of the stranger, who developed an obsession with her, sending abusive tweets and letters, and once breaking into the bedroom of her London home.
She told how police had lent her a panic alarm after she first approached them, only to ask for it back, and later called her to say Gray was "active again" without offering any further explanation.
She says officers initially refused to show her a photo of Gray and when they finally relented would not let her keep a copy.
'If police treat me like this, how will they treat someone without my resources'
"It was not special attention I looked for. It was reassurance and validation. The police made me feel like a nuisance, rather than a victim," she told The Observer .
"I feel lucky I had resources to protect myself, I could move house, get a lawyer, but if you don’t have that money, how much more terrifying must it be?"
She said she was not angry at Gray, as she understood he has a mental illness, but wanted answers from police.
"If they treat me like this, how the hell are they going to treat someone else without those resources, without clout?" she told The Observer.
The Met said it could not comment on specific cases but insisted it took stalking and harassment "extremely seriously".
"The victim should be at the heart of any investigation into such allegations and kept informed of developments as this work progresses," it said in a statement.
"If this is not the case then we are keen to speak to victims and learn any lessons we can to improve our investigations."
Lily Allen joined protesters last weekend in calling for Prime Minister David Cameron to step down following revelations over his tax affairs.
