TMZ reports that one of Maria Carey's staff members was arrested last month in Buffalo.

It was Carey's hairdresser that was detained at the Buffalo Airport after a stash of prescription medication was found.

Among the illegal items found on her were:

Adderall, oxycodone, hydrocodone, Xanax and Suboxone.

Danielle Priano was charged with 4 counts and plead not guilty.

See the MUG SHOT HERE: