Ealing Council will consider DNA testing dog litter in a bid to clamp down on owners who do not clean up after their dogs.
Lib Dem Councillor Gary Malcolm revealed in a newsletter that he has asked the council to follow the lead of the aptly-named Barking & Dagenham Council, which launched a trial of the scheme in January this year.
Councillor Malcolm said he had obtained figures that showed the council had failed to penalise a single person in Ealing for dog litter in the three years leading up to mid-2015.
Labour Ealing Council leader Julian Bell said the council is considering the scheme and eagerly awaits the result of Barking & Dagenham Council's trial.
Cllr Bell added: "It is great to see another borough leading the way on this important issue.
"We have already been looking into whether we could roll out a similar scheme. We will be awaiting the results of the trial with great interest."
Under the scheme, council officers and park rangers collect samples of dog litter and use the DNA to compare it to a database of registered owners.
Cllr Malcolm said residents have been complaining to him about dog litter and said although it would be a slow start, it could eventually deter offenders.
He added: "It is getting worse and not getting better, I asked the council how many had been caught and they said exactly zero.
"So clearly the council do not want to do anything. I came across a story about Barking & Dagenham Council and I thought Ealing could do the same.
"They would take the DNA and make a database which would initially be very small, but if you could find the five or six that do it that would be a deterrent."