AOG and others, you are getting confused Section 60 is the existing power to 'stop and search' Section 60AA is completely different . S60AA is only issued if serious disorder is considered imminent , it can only be issued for a limited time and area. It can not be issued 'just in case' .
Also within the last few days the Met has issued new much tighter guidelines for an S60 stop and search. Now an officer must be able to give a specific reason for doing a S60, they can not, as was happening in the past just do one at will , the officers also wear body cameras that record the details of the stop and search. There will be records kept of all S60s to check that particular individuals are not being unfairly treated.