Can Poly graphic test be imposed on the fake claimants siblings.

My respected father who expired in May 19 had 2 marriages .I am only son from his first wife who did the splendid exemplary best for his siblings from 2nd mother as happens in movies. The education for one of my siblings is my credit, even blood donation from me in the age of 59 for him has been under the carpet . The people used to call me their 2nd mother but as happens in movies, some of my siblings started playing villains but preserving image and respect of my 2nd mother, i never exhibited my displeasure with innocence which kept on becoming their strength. With the passage of time and inclination of my father towards them, their under looking attitudes started taking stride even I was not permitted to build a house in the parental property supported by me and many more like this kept on wounding me. I am not hungry of wealth but as there is a limit of everything hence on the basis of ELDEST Brother Duties performed by me for my parents which is the basis of Rights i wish to mirror them TRUTH and LIES claiming my rights on my parental property supported by me with the money when they were small kids playing in my lap.If there are lies and excuses upon showing will or registry, can Polygraphic Test Or Lie Detection Test be applied upon the lie speaking siblings ? r