Evidence in a case of Domestic Violence case can be statements from the victim and/or witnesses, videotapes or video files from a cell phone, recordings on an open legal hotline like 100, injuries to the victim, texts messages between the parties, etc.
If a victim makes a complaint months after the incident, and there is no “evidence” besides the victim’s statements, a report will be made but it may not result in an arrest unless there is corroborating evidence of the crime.
Such evidence would not include the victim later confiding to someone that the incident occurred. Corroborating evidence would include statements from someone who actually witnessed the incident, or medical records showing treatment for injuries sustained as a result of the incident.
Texts messages from the suspect apologising for an assault could also be used to corroborate the incident.
Some examples that can be used to prove Domestic Violence are Any email, WhatsApp conversations that depict bitter relations or bad treatment from the husband. If there is any physical abuse, then Medical Certificate proving the same can be used. Any Audio or Video recording which shows that you are being suffered. If you could prove occasions before the Magistrate of Domestic Abuse through Recorded messages/proof of marks / recorded video proof containing violence will be enough to make a case of Domestic Abuse.
Also read.