First of all do a bit research
Then get your self a dozen purse nets and a ferret from working stock, a locator is a must in my eyes but if u can't afford one maybe try to borrow 1 til you can get your own, get out on your perm (if you have perm)find smallish looking burrows/setts/warrens with not to many holes,make sure you can see all the holes or take somebody with you if your doin hedges,make sure the burrow is working ie pad marks off the rabbits fresh kick out runs in and out,collar the ferret turn collar on and slip the ferret in, hopefully you will hear rumbling under ground witch mea