I have never interviewed an 'enemy of the state' before.
It is a phrase usually associated with Snowden and Assange, with shadowy whistleblowers under surveillance, or rogue spies on the run in Hollywood action movies.
the man opposite me, sipping tea and speaking so softly I have to lean closer, does not appear to pose much of a threat.
But Nick Dilworth has every reason to feel like the world is against him.
Over the last 20 years he has turned himself into one of the country's leading experts on welfare, benefits, inequality and – his favourite phrase – social justice.
The day job, as a case worker with Advice Plymouth, sees him fighting for the rights of benefit claimants who have run into trouble.
But his passion extends far beyond the office.
"I am obsessed with it," the 56-year-old admits. "We have got to stand up and be counted for the disabled community and the socially disconnected, many of whom have gone underground and are now very reliant on social media.
"What's worrying me is I am seeing quite a few informal help forums and people seeking advice, because there's nobody there for them.
"Frustratingly we are here, but we are not funded sufficiently to do the job we'd like to do.
"The need for specialist advice has been very much kicked into touch, on the pretence that people can manage to resolve these problems on their own, and they can't."
He is talking about that section of society which is so often vilified and misunderstood – people claiming disability, sickness or jobseekers' benefits.
Mr Dilworth spends his time poring over paperwork and unravelling legal judgments, helping clients navigate the muddled world of the Department for Work and Pensions' appeal, tribunal and mandatory reconsideration process.
"We see lots of issues arising out of mistakes made by the statutory authorities, avoidable mistakes over claim handling," he says.
"People talk about sanctions, but that's not the main problem. The main problem is that something will happen with a person's claim, and the next minute their benefits are stopped.
"Sometimes it's down to clients not understanding the system. But there's an awful lot of opening and closing people's claims; that has a knock-on effect with housing benefit and council tax support."
He has a degree of sympathy with councils who do not have sufficient resources to cope; his real frustration is reserved for those in Westminster.
"People are suffering profound hardship and difficulty," he says.
"The system just does people's heads in. That's what we see time and time again, people in utter despair having to deal with a vast array of different letters and bureaucracy. It's become more bureaucratic than I've ever seen before.
"When the Government talks about making efficiency savings, it introduces lots of targets which all have to be quantified.
"Because of that, there are so many systems in place – 'You have to do this, go here, fill out the right forms'.
"It's all about targets. Not necessarily for the wrong reasons, but the end result is a bureaucratic nightmare."
Mr Dilworth, a former tribunal advocate and legal aidsupervisor, sees himself as a go-between to help the council understand what they are dealing with.
"I'm an absolute believer in saying 'Let's work together, let's get some of these problematic cases, let's pull them apart and see what's really going on'," he says.
"But that does entail those departments being a bit more vocal to the people handing those targets down, saying 'What you're telling us to do isn't working. You've got to start listening to us.'
"But people are scared of speaking out and losing their jobs, so it's just getting worse and worse."
Advice Plymouth received almost 42,000 separate enquiries last year, 75 per cent of whom said their problem was causing them anxiety and financial difficulty, and Mr Dilworth says that number is only going up.
There are complex issues with child benefit, council tax support, retirement pensions, income support, housing benefit, child tax credits, jobseekers' allowance and the Personal Independence Payment.
Not to mention the DWP's "absurd" work capability assessments, which have been found to be unfit for purpose.
Plymouth City Council is looking to trim money from services across the board to address a £40million budget shortfall.
Mr Dilworth recently objected to plans to cut council tax support for families with children, a move branded "a war on Plymouth's poor"
His detailed paper, presented as evidence to a scrutiny committee (above),led to a U-turnas the two most contentious points – ditching the 'family premium' element and limiting support to two children – were scrapped.
"I was quite humbled," Mr Dilworth says. "It's about showing that knowledge is really important.
"It's not about us saying 'We are opposed to everything the council does'. We are using lots of evidence to go through this properly and say why we think this is wrong.
"It was really nice to hear a blend of councillors, of all political persuasions, saying 'This has helped change my mind'."
Despite the welcome feedback at local level, he still feels advice centres are an obstacle in the Government's path.
"I think we are seen as an enemy of the state, and that's worrying," he says. "We should be seen as a friend of the state.
"Investment in what we do really does result in authorities saving money. The cost of getting this wrong is huge."
Nick Dilworth, benefits case worker with Advice Plymouth (below), said: ""We are very concerned over any plans to relocate Job Centres especially in a city as large as Plymouth if it leads to any downsizing or reduces accessibility to services
"People looking for work need all the help they can get. This is of great concern at a time when the DWP plans to escalate the number of claimants on Universal Credit to a much greater number from October this year.
"Many problems with our client's claims can be much more easily resolved by approaching the local Job Centre at Exeter Street, with whom we have a very good relationship, rather than benefit centres placed elsewhere around the country which are often notoriously difficult to communicate with and where all too often problems occur.
"Any plans to downsize or place an increasing reliance on online contact seem to go against the grain of offering claimants much needed intensive support."
Employment Minister Damian Hinds promised to "avoid any redundancies wherever possible".
But he warned MPs: "We do recognise that in a small number of cases relocation will not be reasonable or achievable for individuals working in our back office functions and exits may be required."
Mr Hinds added: "Where we are proposing closing a site we will take all possible precautions to minimise disruption for claimants, and vulnerable people will receive home visits and postal claims."
Labour politicians in Plymouth have expressed anger at the move.
Former Parliamentary candidateLuke Pollard said the closure would "make it harder and harder for job seekers," adding: "We are not all in this together."
Devonport councillorKate Taylor said: "Where are our residents supposed to go if they close Plymouth Job Centre?"
In a statement issued by the DWP press team, Mr Hinds said: "We will always make sure that people have the support they need to get into and progress within work, that's why we are recruiting 2,500 more work coaches to help those who need it most.
"The way the world works has changed rapidly in the last 20 years and the welfare state needs to keep pace. As more people access their benefits through the internet, many of our buildings are under-used. We are concentrating our resources on what we know best helps people into work.
"The changes we've announced today will help ensure that the way we deliver our services reflect the reality of today's welfare system."
South West Devon MP Gary Streeter said: "I recognise the need to rationalise.
"I can remember when Plympton Job Centre was closed some years ago - all kinds of fears were voiced about impact on claimants, but these never materialised.
"I would rather what precious money we have is spent on those needing welfare support than a structure that is larger than we actually need.
"Hopefully this can be done without any compulsory redundancies. As more and more services are accessible online, I suspect this won't be the last review."
"Despite economic recovery we still face an uncertain future in Plymouth, and it concerns us greatly that increases in council tax will hit people, many of whom are working people on low incomes, forcing them further in to debt and despair," he said.
"Our debt teams report difficulty with paying priority debts such as their rent, mortgage, utility bills and council tax as key presenting issues.
"Forcing council tax bills up increases the amount of council tax owed through the addition of enforcement charges and leads to accounts falling in to arrears.
"In some cases the only solution is to advise our clients to apply for remedies such as a debt relief order, which means the council will not recover what they are owed."
His detailed paper, presented as evidence to a PCC scrutiny committee, sparked a U-turn as the two most contentious points – ditching the 'family premium' element and limiting support to two children – were scrapped.
He said he is keen to keep providingassistance wherever possible.
"We absolutely recognise the council's difficulty in finding the essential funding it needs to pay for services, particularly adult social care, and we will continue to work closely with them in providing evidence as to how these cuts hit the people of Plymouth," he said.
"We can only hope this increases the council's case for getting more and much needed funding from central government."
Father-of-two Karl Parsons, who lives in St Judes, says he would not be happy with a council tax rise.
"A city should be run for its residents, but charging more council tax and raising fees for services at the same time seems to be taking it out on residents," he said.
"If the council needs to raise money then why not lobby for the student council tax exemption to be removed?
"Lobby for a fairer allocation of funds from central government, don't screw the people you work for.
"I would be happy to pay more council tax if I was being promised something more in return, not less."
Anyone in financial difficulty can call Advice Plymouth on 03444111444.