He had a prior conviction for armed robbery.

他先前因持械抢劫被定罪。

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In 1985 a man named John Thompson was convicted of murder after prosecutors hid a blood test that would have cleared him of a prior conviction, for armed robbery.

1985年，一个名叫约翰·汤普森(John Thompson)的男子被法庭判决谋杀罪名成立。当时检察人员隐瞒了一项血检结果，该结果本可以洗脱他之前持枪抢劫的定罪。

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Almost three quarters of those aged over 18 who were charged over the riots had a prior conviction, he added.

BBC: Ken Clarke says riots 'legacy of broken penal system'

Knowing about his prior conviction makes no difference, Ms. Batten-Mickens says.

WSJ: Federal Offenses: Sewage Blunder Earns Building Engineer a Criminal Record

Among the more jarring aspects of this new case is that Stein was running his alleged fraud while out on supervised release for his prior conviction.

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