The correct Active/Passive form of the given sentence is:

☀ The Narcotics Authorities have been tipped about drugs.

Explanation for other options:

☀ The Narcotics Authorities have been tipped by drugs. This option does not make sense as drugs cannot tip the authorities. The agent should be a person or entity capable of performing the action.

☀ The Narcotics Authorities were tipped about drugs. This option is in the passive voice, but the tense is incorrect. The original sentence is in the present perfect tense, so the correct form should be "The Narcotics Authorities have been tipped about drugs."

☀ The Narcotics Authorities have tipped someone about drugs. This option is in the active voice but changes the meaning of the original sentence. It suggests that the authorities have informed someone about drugs, rather than someone informing the authorities.