594. Spent convictions.

Where an individual has been convicted1 of any offence or offences and:

  1.  

    (1)     he did not have imposed on him in respect of that conviction a sentence2 which is excluded from rehabilitation3; and

  2.  

    (2)     he has not had imposed on him4 in respect of a subsequent conviction during the rehabilitation period applicable to the first-mentioned conviction a sentence which is excluded from rehabilitation