West Mercia Police have called on people not to ignore signs of domestic abuse.
Det Insp Liz Warner, who leaders on domestic abuse for the force, tweeted that it was "no different" to seeing a "neighbour's car being broken into" and said it should be reported to police.
Her comments came after reports officers were called to reports of a row involving Boris Johnson and his partner Carrie Symonds, in Camberwell, south London.
At a hustings in Birmingham at the weekend, Mr Johnson refused to answer questions on the incident.
His supporters have said it was a private matter. One of them, Priti Patel said the neighbour's decision to record the dispute and pass to a newspaper suggested the action had been "politically motivated".
Defending his actions, neighbour Tom Penn told the Guardian he had been worried about his neighbours' safety, adding: "I hope that anybody would have done the same thing."
Det Insp Warner said it was important to "use this moment to correctly educate people". She urged anyone with suspicions to call 101 or 999 in an emergency.