Is it legal to take money out of a deceased persons bank account before all the legalities are complete?

Question Details: My aunt Passed away less than 2 weeks ago and named both of her girls as 50/50 of her estate in her will. One of the girls has her bank card and has been withdrawing money out of her checking and savings account. I think that it is illegal for her to be doing that until everything is settled and split 50/50. The estate and will are in Colorado. Important Notice