Over the past few years, I’ve been asked to provide language evaluations in cases that involved crimes involving Deaf people against each other, typically domestic violence cases. In several of the cases, the Deaf person with better speech skills would gain control over the police questioning when the arrest occurred, with police becoming more sympathetic to the abuser rather than the victim. The police have an easier time “listening” to the Deaf person who has the better English speaking skills and no sign language interpreter is present to give the “other side of the story.” In one case, a hard of hearing individual with substantial hearing accused her former Deaf lover of writing threatening text messages which he clearly did not write as he did not have the language skills. These cases underscore the importance of police to summon a sign language interpreter regardless of the speech skills of one of the Deaf persons involved. If they fail to do this, a “double injustice” occurs. For one, they violate ADA in not providing effective communication and 2) they fail to gather accurate and non-biased information about the crime that took place.