People are being reminded to clean up after their dogs or they could be taken to court and fined up to £1,000.
It comes after a man in West Haddon was fined for allowing his dog to foul on a pavement in Morrison Park Road without cleaning up the mess last month.
A resident saw the offence and took a photo of the fouling, which also captured the dog owner as he walked away.
Officers from Daventry District Council (DDCs) were able to use this evidence, including a description of the dog, to trace the owner to an address in West Haddon.
When confronted with the evidence on October 17 the dog owner acknowledged that his behaviour was unacceptable and he received a £75 fixed penalty notice.
DDCs community manager Maria Taylor said: “The public repeatedly tell us that dog fouling is one of their most serious concerns in the community, which is why we are currently running an environmental campaign in Daventry during November.
“We have thanked the public-spirited gentleman who submitted the crucial photographic evidence in this case and would urge other members of the public who observe such offences to do the same, providing it is safe to do so.
“People can rest assured that when the Council has evidence of such irresponsible dog ownership fixed penalty notices will be issued and repeat offenders will be prosecuted.”
People can report dog fouling to the Environmental Improvement Team at Daventry District Council online or call 01327 871100.