 Initially, the 1973 Constitution twice enjoins "adequate provision shall be made for minorities" in its preamble, and the Fourth Amendment (1975) guaranteed at least six seats in the National Assembly would be held by minorities to safeguard their "legitimate interests".However, the human rights record of Pakistan declined under the dictatorship of the US-supported General Zia.General Zia introduced Sharia Law which led to Islamization of the country.