A good law is no littering. because that if people did littering all the environment would die plants can't grow and if some one doped a raper and bird came and ate it it will start to die and we don't won't that because then it many get extinct.

 Another good law the speed limit. because with out it there would be a lot of people dead and a lot of people would be scad to drive on the rode. one time I was in the car on the way to soccer and I so a big car and a small car and the big car did not have a mark and the small car was crushed.