<p><br /> Lindsay Lohan has pleaded not guilty to a charge of stealing a $2,500 (£1,500) necklace from a Los Angeles jewellery store.<br /> </p><p><br /> In a brief court appearance, where the 24-year-old was wearing a skin-tight white dress, black heels and sunglasses, a judge warned the actress that she needed to adhere to the law while her case was pending or she might possibly be jailed without bail.<br /> </p><p><br /> If convicted, Lindsay, also known as Lilo, could be sent to prison for up to three years.<br /> </p><p><br /> The Mean Girls star, who is still on probation for a 2007 drunk driving and cocaine possession offence, is accused of walking out an LA jewellery store without paying for the gold necklace in January.<br /> </p><p><br /> The alledged incident occured just three weeks after Lilo had completed her fifth stint in alcohol and drug rehab in three years.<br /> </p><p><br /> Friends have said Lindsay believed the necklace, which has been returned to police, was on loan.<br /> </p><p><br /> The former child star, who was once considered one of the industry's most talented young actresses, is also currently under investigation for allegedly attacking a Betty Ford employee during her spell in rehab earlier this year.<br /> </p>
