With governmental resistance prohibited, separate media quashed and spiritual unprivileged focused, the ex-rebel govt uses a system of subterranean tissues and delivery bins to house the criminals, the review launched on Friday said.
"The govt has consistently used irrelavent police arrest and detention without charge to grind all resistance, to quiet all dissent, and to penalize anyone who will not adhere to the repressive limitations it places on individuals lifestyles," said Claire Beston, Amnesty's Eritrea specialist.
The review says "at least 10,000" criminals have "disappeared into key and incommunicado detention" in the Horn of African-american country, but alerts it is difficult to know the actual figure.
The review was published ahead of Eritrea's festivities of 20 years of independence on May 24, which followed an absolutely elect by the people to divided from Ethiopia after years of nasty war.
Eritrean rebels fought far better prepared Ethiopian soldiers -- supported first by the United Declares, then the Communist Partnership -- for three years until success in 1991, which was followed by a referendum two years later.
A following boundary issue with 'Eritrea jails 10,000 political prisoners' from 1998-2000 still simmers, which experts say Asmara uses as an reason for its ongoing iron-rule.
"Twenty years on from the euphoric festivities of independence, Eritrea is one of the most repressive, discreet and not reachable nations on the globe," Beston added.
Opposition events are prohibited and anyone who difficulties Chief executive Issaias Afeworki is locked up without test, often in the toughest of circumstances.
Reporters Without Boundaries details Eritrea below Northern The philipines as the most severe country on the globe for media independence.
There was no immediate reaction from Asmara.