Ghouls just wanna have fun this coming Halloweekend.
But beware, Boston police say, of possible danger lurking in the night.
Commissioner Michael Cox is urging local college students to stay safe as the celebrate in the week leading up to Oct. 31.
In a letter sent Tuesday to the city’s colleges and universities, Cox outlined possible illegal activities, how to take action if something happens, and ways to keep each other safe.
He warned students of possible drink spiking, and advised them to keep their cups covered. They should also not leave drinks unattended, and to only take drinks from someone who can be trusted.
Cox reminded students that drinking under the age of 21 and drinking in public are taboo. If a student is arrested or charged with an offense, police notify universities, where they can also face punishment, he wrote.
Students should call 911 in case of an emergency or any situation that “seems questionable” Cox said.
“By taking action, you may prevent a crime from being committed and help keep you or others safe,” Cox wrote .
Extra police patrols are planned near college campuses. Police presence will also be higher on Halloween and that weekend “for everyone’s safety,” Cox wrote.
He also urged students to look out for one another during the celebrations.
“On behalf of the Boston Police Department, have a safe and happy Halloween!” Cox wrote.
Breanne Kovatch can be reached at breanne.kovatch@globe.com. Follow her @breannekovatch.