Demi Lovato as sexy cop for Halloween

Demi Lovato looked ready for the vice squad Tuesday in a sexy police costume for Halloween.

The 25-year-old singer wore a revealing police outfit that included a black leathery long-sleeved leotard, fishnet stockings and heeled boots.

The Heart Attack singer completed her Halloween outfit with a black custodian helmet, hoop earrings and black nail polish. 

Under arrest: Demi Lovato wore a sexy police costume on Tuesday for Halloween and shared an Instagram snap of herself frisking a scantily clad friend

Under arrest: Demi Lovato wore a sexy police costume on Tuesday for Halloween and shared an Instagram snap of herself frisking a scantily clad friend

Demi took to social media to share her Halloween fun with her fans.

She posted an Instagram snap showing herself frisking a brunette gal pal wearing a revealing yellow outfit and fishnet stockings while leaning against a Los Angeles Police Department patrol car with its lights on.

'Watchu gon do when they come for you?,' Demi wrote in the caption.

She also posted another photo that showed her toned legs, ripped stockings and thigh holster.

Police woman: The Confident singer showed her toned legs in ripped stockings

Police woman: The Confident singer showed her toned legs in ripped stockings

'Protect and serve,' she wrote in the caption.

Demi also shared video on documenting their run to a gas station for cans of Red Bull energy drink.

The video featured backside shots of Demi's pert derriere and a close-up of her handcuffs and

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