A STAR-studded California city has banned items commonly found in a prankster’s arsenal on Halloween.

Officials in Beverly Hills, known to house celebrities like Adele, Ellen Degeneres, and Johnny Depp, have cracked down on teen shenanigans in anticipation of October 31.

The City Council passed an ordinance in September that bans the use of shaving cream, silly string, or hair removal gel on public property while kids are out trick-or-treating.

Those under the age of 21 will get into trouble if they go against the ordinance, which is set in place for 24 hours starting at 6am on October 31.

First-time offenders will get a warning, but if someone under 21 gets caught violating the ordinance more than once, they will get a citation issued by police, according to Beverly Hills Police Department Sergeant Dale Drummond.

Additionally, police will ask the violator to give them any banned products, Drummond said.

It is unclear what the penalty will be for disobeying the ordinance, but the city said violators can receive an infraction or be charged with a misdemeanor.

In California, a standard misdemeanor can carry a maximum fine of $1,000, according to Los Angeles-based criminal law firm, Kraut Law Group.

This is not to say that silly string is outright barred from the spooky holiday.

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Residents are allowed to use the banned products on private property if the owner gives their permission, the ordinance says.

Trash bins will also be around for people who are unaware of the ordinance to get rid of the contraband.

The ordinance was put in place for concerns over the safety of residents, but also environmental worries.

Sergeant Drummond said that shaving cream can be sprayed in someone’s eyes and hair removal gel can also be used to mess with unsuspecting victims.

Officials also noted that the use of silly string can be considered vandalism if used inappropriately.

All of these products take a lot of water to clean off and the city warned that the runoff could pollute nearby waterways, which is in violation of the Clean Water Act.

There will be an increased police presence and more security guards on Halloween night, officials say.

“Our ultimate goal is for everyone to be able to come and enjoy Beverly Hills and be able to trick or treat,” Drummond said.

The ordinance was created so that the city could have a “family-friendly Halloween experience for everyone,” Beverly Hills spokesperson Lauren Santillana told the Los Angeles Times.

Signs will be posted to spread the word of the ordinance and local schools have been notified.