A manipulative offender who can convince a frightened and vulnerable victim to drop charges may be deterred from violence if he knows police and prosecutors can pursue the case without the victim's testimony. Law enforcement agencies can obtain sufficient evidence to secure convictions without victim assistance by carefully prioritizing evidence collection in domestic assault cases. Evidence collection procedures employed by the Dover, New Hampshire, Police Department are described as they pertain to 911 tapes, victim statements, photographs, offender and witness interviews, medical records, and plain view evidence. 1 photograph