<Tr> <Td> 20th </Td> <Td> For Free and Fair Elections . </Td> <Td> </Td> <Td> </Td> <Td> February 14, 2012 </Td> <Td> Full Text </Td> </Tr> <Tr> <Td> 21st </Td> <Td> For Speedy Trial Military Courts to deal with terrorism . </Td> <Td> </Td> <Td> </Td> <Td> January 7, 2015 </Td> <Td> Full Text </Td> </Tr> <Tr> <Td> 22nd </Td> <Td> ECP powers deputed to Chief Election Commissioner </Td> <Td> </Td> <Td> </Td> <Td> June 7, 2016 </Td> </Tr>

What is 22nd amendment in constitution of pakistan