LINCOLN, Neb. (AP) — Attorney General Doug Peterson is slated to meet with western Nebraska law enforcement to discuss the impact of Colorado marijuana on the region.

Peterson and his criminal bureau chief, John Freudenberg, will visit the region on Thursday and Friday. Peterson has said he opposes Colorado’s decision to legalize marijuana, and supports a lawsuit filed by Nebraska and Oklahoma to have it declared unconstitutional.

Colorado’s decision has riled some western Nebraska law enforcement officers who say marijuana coming into Nebraska has increased their workload.

Peterson is expected to visit Chadron and Gering on Thursday and Sidney and North Platte on Friday.