Don't know what to do or what agency to call. They feel threaten, but don't wanna get the cops involved, cuz they are family. Can some one give me some advise..
Maggie is giving you GREAT advice. Adult Protective Services may be called something slightly different in your area. So if you have any trouble figuring it out, Google Area Agency on Aging and the name of the County your in laws live in. The AAA folks should be able to give you the correct agency to call.