Almost 3,500 tonnes of illegally dumped waste sit behind a joint investigation that produced its second arrest this month, after the Environment Agency and Lancashire Police detained a 29-year-old man near Preston.

The man was questioned in connection with an illegal waste site at Callerton, near Newcastle Airport, and has been released on bail. The arrest follows an earlier detention in Sunderland, Tyne and Wear, where a 32-year-old man was also bailed pending further enquiries.

Both men remain suspects, not defendants. Bail is the only deadline the case currently has.

How much waste are we talking about?

The Environment Agency puts the combined tonnage across three dumps at nearly 3,500 tonnes. The sites under investigation are:

• Two separate sites in Peterlee and Hartlepool, County Durham
• One site at Callerton, near Newcastle Airport, since cleared by the landowner

Local residents reported the sites over the summer. The regulator opened its investigation shortly afterwards. Callerton is now cleared; the Peterlee and Hartlepool sites carry no stated clearance date.

That is the gap worth watching. An arrest is a headline; tonnage that stays in the ground is the actual remediation problem.

What does the government claim it is doing?

Environment Secretary Dame Angela Eagle framed the arrests as part of a broader enforcement push. "These arrests are an important step in achieving justice for those communities in the North East who have had to put up with the impacts of these appalling illegal waste sites," she said.

The Secretary of State added: "Through our crackdown we are putting more officers on the frontline and driving faster enforcement and disruption of criminal activities."

And, in the sentence that carries the most weight as a pledge: "This government is taking a zero-tolerance approach to waste crime and this action shows we are delivering on our promise to bring these criminals to justice."

A zero-tolerance commitment is only as good as its prosecution rate. That number has not been published here.

What happens next at the Environment Agency?

Gary Wallace, Area Environment Manager at the Environment Agency, described the regulator's investigation into the three sites as "relentless".

"We'll continue to put every effort into taking action against those suspected of being involved," Wallace commented.

He added: "Illegal waste sites are a blight on our communities and the environment, and we're determined to bring those behind them to justice."

Two arrests, two bails, one cleared site and roughly 3,500 tonnes of material across two counties. That is the current ledger.

The milestone that decides the story

The next marker is procedural: whether police and the Environment Agency convert bail into charges, and whether the Peterlee and Hartlepool sites follow Callerton into clearance. Until one of those happens, the tonnage figure remains the only hard number in the file.

By Olivia Hart