The security crackdown leaves no room for militant safe havens on either side of the Pakistan-Afghanistan border.
The former Tehreek-e-Taliban Pakistan (TTP) spokesman surrendered to Pakistani authorities and called on other militants to follow his lead.
Security forces killed or apprehended a number of militants in March, while security analysts recorded a drop in militant attacks.
Pakistani security analysts welcome the dropping of the bomb on 'Islamic State of Iraq and the Levant' (ISIL) hideouts in remote Afghanistan.
His province-wide counter-terrorism strategy, introduced in early 2014, is widely acclaimed for driving down terrorism.
Under the new law, police will be more independent and free from political interference, authorities say.
Security officials have vowed to avenge 'each drop of the nation's blood' following suicide bombings across the country.