The Metropolitan Police receives a call about domestic abuse every six minutes.
The statistic is revealed in a report highlighting links between domestic violence and crimes outside the home.
Of those committing domestic assaults 49% had a previous criminal conviction, 9% of victims were children and 5% of those affected were pregnant.
But the findings show the more contact offenders have with the criminal justice system, the better they get at getting away with offences.
The report, which shows the force receives more than 104,000 calls each year on domestic abuse, will be discussed at a two day conference on violence in the home.
At least 49% had a previous criminal conviction and tended to be for offences other than domestic violence
5% had either just been released from prison, had broken a court order, injunction or bail conditions by going around to the victim's home and committing the offence
One in 30 were investigated by Operation Trident
The research profiled all reported sexual offences in a domestic situation for the first four months of 2001.
Additionally all attacks, kidnappings, attempted murders and murders identified as occurring in the home between January and February 2001 were analysed.
This totalled just less than 400 offences, with all the perpetrators individually profiled.
Four cases resulted in the victim being murdered by the suspect.
5% were pregnant at the time of a sexual assault
In 31% of offences children were recorded as present in the house
In 10% of cases a child witnessed a rape
57% were repeat victims and there was a long and protracted history of abuse
And 24 offenders had previously received a sentence for domestic violence.
The research also found that one in four of the suspects studied were female.
In some of these cases the violence appeared to be defensive and in retaliation to the threat of or actual violence from the male partner.
The report found that the on-going relationship between the perpetrator and victim increases vulnerability to future abuse and acts as a barrier to seeking help.