According to one Mitchell Proner, the state's institution of roadblocks exclusively for motorcyclists is unconstitutional: the motorcyclist and personal injury lawyer claims that without justifiable cause, the checkpoints infringe on riders' First Amendment rights to freedom of assembly and association and their Fourth Amendment right to freedom from unreasonable search and seizure. Last year, the New York State Police conducted twelve such "safety checks" near motorcycle events, including the Americade biker gathering at Lake George, the largest such event in the Northeast – and the NYSP plan on conducting fifteen more this year.