Paris Hilton -- heiress, bon-vivant, and media magnet -- was denied entry to Japan today due to her recent conviction for possession of cocaine in Las Vegas, Nevada. The immigration lawyers here at Fong & Aquino in the Hollywood area of Los Angeles often hear from immigrants and visitors who want to come to the USA after having been convicted under, or having admitted to having committed a violation of, any law or regulation relating to a controlled substance.
Although Japan's immigration exclusion for drug offenders is strict, the US has similar restrictions, and any alien who has committed an offense more serious than possession of ≤ 30 grams of marijuana should NOT expect an easy time of getting into the USA. A waiver is available for very, very limited cases. We cannot be very encouraging to ANYone who has a prior drug conviction or admission.
Those who have been "cautioned" for marijuana possession in certain countries such as the UK and Australia should know that such "cautions" typically include the perpetrator's admission of the underlying facts of the incident (e.g., the possession). Therefore, the perpetrator has admitted to having committed the violation, even if there was never a trial, a conviction, or other citation. --jcf