A company which avails itself of sections 4973.17 and 4973.18 of the Revised Code may make needful regulations to promote the public convenience and safety in and about its depots, stations, and grounds, not inconsistent with law, and print and post such regulations conspicuously upon its depots or station buildings. Policemen appointed under such sections shall enforce and compel obedience to such regulations. The keeper of jails, lockups, or station houses in each county shall receive persons arrested for the commission of an offense against such regulations or the laws of the state upon or along the railroad or premises of such company.