He was elected into LegCo in since 1998 LegCo elections in the New Territories East geographical constituency , after he joined the pro-Beijing Democratic Alliance for Betterment of Hong Kong ( DAB ) .
In 1996 , Lau secured a seat in the Provisional Legislative Council .
Lau was elected into Provisional Legislative Council in since 1998 Provisional Legislative Council elections in the New Territories East geographical constituency , after Lau joined the pro-Beijing Democratic Alliance for Betterment of Hong Kong ( DAB ) .
In 1996 , Lau secured a seat in the Provisional Legislative Council .