By offering the Centre party reassurance that he would not use the powers without consulting Hindenburg. Hitler won its support so could gain the 2/3 majority.
What was the Decree for the protection for the people and the state?
legalised a full-scale assault on communists by giving police increased power to arrest and detain without charge and to enter and search private premises.
Gave Hitler emergency powers and suspended civil and political rights under the constitution
How did Nazis use the Reichstag fire as propaganda?
claimed that the communists were plotting a revolution so became a legal reason to justify suspension of civil liberties and Hitler persuaded Hindenburg to call a new election in March where Nazis would increase terror.