My mother in law (from China) n my husband had a huge fight and she left the house today morning and still have not return. She also switch off her phone. She is 70 and only speaks Mandarin. Husband heck care. I dont know what to do. Should I go to the police?

So long as it's more than 24hrs, pls go to the police. Better be safe than sorry. Moreover, she's 70yrs old and from China. It's quite unhealthy. Speak to yr hubby abt it. Asking him how he feel if this happens to him when he grows old. Thia is definitely not a nice thing to do.