impeachable offence

It also gives the impeachable offences for which it claims Tony Blair must offer a defence:

Representatives in the Baden-Württemberg parliament called for his impeachment, albeit that the state constitution did not allow for Orlet's behaviour to be considered an impeachable offence.

AfterDowningStreet.org - After Downing Street (a coalition campaigning for the US Congress to formally investigate whether President Bush committed impeachable offences in connection with the Iraq war)

A coalition of American groups known as After Downing Street, co-founded by a group of longtime progressive and/or Democratic Party activists, called on Congress to file a Resolution of Inquiry, the first necessary legal step to determine whether President Bush had committed impeachable offences.