A litter-picker has hit out at mysterious defecators after growing increasingly frustrated with cleaning human faeces from a number of laybys.

Sandra Duck, 53, from Bootle has been voluntarily clearing laybys in the town for the past three years but is concerned at the increasing amount of litter and human excrement.

She said: “Quite often the poo is in a bag, or it is under a pile of wipes. Sometimes I don’t pick it up if it is too messy.

“Quite often it’s people who stop in the layby for lunch or they stopped overnight, and I’m not pointing fingers but van and lorry drivers tend to stop at laybys for a period of time.

“I understand the call of nature, but don’t they have a potty in their van? There are toilets in Bootle, so they could use them too.

“We get a lot of bottles full of urine, that’s a regular occurrence. Some bottles are full of drinks like lemonade – but some of it isn’t lemonade.

“Poop in a bag is common just like with dog mess, the humans do the same. They’ll do it in a carrier bag, piece of newspaper – whatever they have to hand.

“They’ll just do it and throw it on to the layby, it’s disgusting."

Mrs Duck says she cleans the laybys because of her hate of litter. She said: “I do it because I hate rubbish, it spoils our beautiful countryside.

“I’m not the only one, there’s a lot of people around here who do the same thing because they think it’s unsightly and wrong.

“We truthfully need some CCTV, overtly placed to catch them.

“It’s a scourge on society and it never seems to get any better.”