From October 1975 until August 1978 he had served as an operative worker in the National Security Committee (KGB) of the then Estonian Soviet Socialist Republic (ESSR).
从1975年10月起至1978年8月止，他作为一名特工为当时的爱沙尼亚苏维埃社会主义共和国国家安全委员会(克格勃)服务。