Alassane Diop was a Minister of Information in Guinea

Guinea

Guinea , officially the Republic of Guinea , is a country in West Africa. Formerly known as French Guinea , it is today sometimes called Guinea-Conakry to distinguish it from its neighbour Guinea-Bissau. Guinea is divided into eight administrative regions and subdivided into thirty-three prefectures...

 who was arrested and held in Camp Boiro

Camp Boiro

Camp Boiro or Camp Mamadou Boiro is a defunct Guinean concentration camp within Conakry city.During the regime of President Ahmed Sékou Touré, thousands of political opponents were imprisoned at the camp....

 for ten years, returning to Senegal after his release.

Diop was Senegalese in origin and was trained as an electrical engineer.
He became Minister of Posts and Telecommunications in Guinea.
He was named by President Sékou Touré as head of a commission to investigate foreign invaders in the interior of Guinea. He reported that there were none. Toure thanked him for his work, and gave him 15 days of leave in Bulgaria

Bulgaria

Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

. While he was absent, a new commission headed by Ismaël Touré

Ismaël Touré

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concluded that there were in fact invaders, and that Diop was an accomplice.
He was arrested in 1971 and spent ten years in prison.
By 1976 he was one of the only survivors of the ministers who had been arrested and sent to camp Boiro since 1969.