Big Boi Police Report 3 Ecstasy Pills, 10 Viagra

Officers performed a pat-down on Big Boi from Outkast when he got off a cruise ship in Miami yesterday, and found several drugs ON HIS PERSON ... this according to the Miami-Dade Police report obtained by TMZ.

Cops say U.S. Customs and Border Patrol searched Big Boi after a drug-sniffing dog named Cezar reacted to Big Boi.

According to the Miami-Dade Police report, "The pat-down revealed 5.7 grams of MDMA in powder form, 3 pills of suspect ecstacy, 9 whole pills of Viagra and 2 [half-pills] of Viagra, and a cigarette roller with suspect marijuana residue."

TMZ broke the story, 36-year-old Big Boi was arrested for 3 counts of possession of narcotics and 1 count of possession of drug paraphernalia.

On the report, Big Boi -- real name Antwan Andre Patton -- is listed as 5'7" and 172 lbs ... with two forearm tattoos .... "Dirty" on the right and "South" on the left.