A 21-year-old faces four-and-a-half years in prison for conspiring to smuggle drugs into Guernsey.
Aaron Underwood swallowed 402 pink tablets packed into two condoms, thinking they were ecstasy pills.
When he was stopped by Customs at Guernsey airport it was found that the tablets contained caffeine.
In an interview, Underwood told officers that he ‘knew’ the tablets were Ecstasy because the man who gave them to him had told him so.
Underwood pleaded guilty to conspiring with others to import drugs.
Crown Advocate Graeme McKerrell asked for destruction of the caffeine tablets, which was granted.