The apartment of Michael Hartmann, the interior policy expert for the centre-left SPD (Social Democrats), was searched by police last week in a drugs probe.
And on Wednesday the lawyer of the lawmaker from Mainz said his client did buy and consume a small quantity of the drug in autumn 2013.
His lawyer said he used crystal meth for around a month, but was not addicted to the drug. The lawyer said Hartmann had hoped to “improve performance” at work by taking it.
The 51-year-old had previously spoken out against using cannabis.
Hartmann stepped down as the SPD’s parliamentary spokesman for interior affairs after the allegations first came out last week, but he remains a member of parliament.
Police searched his home in Berlin after observing him buying the drug and are now investigating the case.
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