DNA testing on biological parents that may not be
My husband and I are somewhat convinced that his biological parents may not be that. He does not look like either of them at all nor like anyone else in his family. He has two brothers one that is biological and the other is a half brother. They both resemble his mother greatly. We are wanting to find out if these are his parents but without letting them know as we don't want to hurt their feelings in case he is their biological child (although we feel pretty strongly that he could have been switched at birth). Any suggestions as to how we can obtain a dna sample from them without their knowledge?