The Article 70 was to prevent floor crossing. The chaos of the past and the unworkable situations created by the members of the parties helped to establish this provision. Under the 1972 Constitution there were mainly two conditions against floor crossing:
1.If a member resigns from his party.
2.If he votes against his party during voting time.
But the 4th Amendment added two more conditions to it to strengthen the law against floor crossing. They are:
1.If a member is present in the parliament but still doesn’t take part in voting.
2.If a member doesn’t attend the parliament at all against the will or direction of his party.
Two more conditions were added in the 12th Amendment. They are:
1.None can’t form a group within one political party.
2.If one elected member joins any other political party then it is the violation of Article.