Liability for theft during martial law

I read that a man was detained for stealing items from a house in Kyiv, and he was served with a notice of suspicion specifically under part 4 of Article 185 of the Criminal Code of Ukraine - this is theft under martial law, which carries a penalty of up to 8 years in prison. I am interested in why the liability for such actions is stricter during wartime? What are the specifics and consequences for a person if theft is committed during martial law, compared to normal times?