Generate an appropriate single-sentence summary for the given text such that it includes the main topic of the text.

[EX Q]: Robert Hutchinson from Sunderland has been missing since 23 June, and police have arrested and bailed two men on suspicion of murder. Mr Hutchinson, 57, was last seen at 18:20 BST leaving his home in Corporation Road, Hendon. He left in his blue Nissan Micra, which was found the following day, parked in Stewart Street, near the city centre. Police arrested two men, aged 39 and 55, on suspicion of murder on 16 July. They have since been bailed. The charity Crimestoppers has offered the reward for information that might shed light on his disappearance. People can give information anonymously and still potentially claim the money. Police have also released pictures of Mr Hutchinson's car and a CCTV image of him filling it up at a petrol station on the Leechmere Industrial Estate two hours before he was last seen. Det Ch Insp Christina Barrett from Northumbria Police said: "Robert's family are incredibly upset by what has happened. "I think the answer to this investigation lies in the local area and with local people, we need their help to find out where he is and what has happened to him."
[EX A]: A reward of up to £3,000 has been offered for information that might help in a murder investigation.

[EX Q]: Sums of more than £500 must be registered and come from the UK under electoral law. Concerns were raised during the European election campaign the party could allow multiple donations - potentially from outside the UK - to circumvent the rules. The party said no rules were broken. It also said it would "embrace" the recommendations on checking donors. Under UK law, donations of £500 or above must be made by a "permissible donor" - someone who is listed on the electoral register or a company registered in the UK. Amounts below that do not have to be declared, but some critics - among them ex-PM Gordon Brown - have said there is no way of telling whether those smaller amounts come from British or foreign sources, and therefore the system may be being abused. The Brexit Party topped the polls at last month's European elections. During the campaign, it said donations of £25 or less had accounted for 90% of its total funding. It raised more than £2m from small donors, thousands of whom paid £25 each to become registered supporters. But Mr Brown suggested the party was getting round the declaration rules by accepting multiple "untraceable" donations directly online. Political parties have 30 days to return donations if they are unsure of their origin. To date, the Brexit Party has handed back one donation, of £1,000, as the party could not identify whether it was from a permissible source. 'Robust measures' The Electoral Commission said it had made the party aware of its "legal responsibilities". It was "legitimate" for any political party to adopt a fundraising strategy focused on raising small sums through online payment systems, including PayPal, it said. But it said there was a legal duty on parties to check every payment they obtained online to ascertain the source of the donation and "not to accept any that they are not entitled to". Parties should request "as much information as possible" to ensure all money was from a permissible source, it said. In a statement, it said it had concluded that the "fundraising structure adopted by the party leaves it open to a high and ongoing risk of receiving and accepting impermissible donations". The watchdog's director of regulation, Louise Edwards, said it had made "specific recommendations to the party that will support it to meet its legal responsibilities when it comes to receiving funds". "Should it fail to meet those responsibilities, this will be considered in line with our enforcement policy," she added. 'Same rigour' In response, the party said the watchdog's recommendations were "helpful" and it would embrace them "as soon as practicable and possible". "They haven't found any examples of infringement of Electoral Commission rules," a spokesman said. "We trust that the Electoral Commission have been applying the same oversight and rigour to the other political parties and their fundraising." During the campaign, the party insisted all of its donations were above board and it had made clear on its website that people should not attempt to give money unless they were on the electoral roll or eligible to vote. Both the Labour and Conservative parties also have the option to donate via PayPal on their websites. The Electoral Commission will, in August, publish details of larger donations, of £7,500 and over, given to The Brexit Party and other parties during the election campaign.
[EX A]: The Brexit Party's online funding system left it open to "a high and on-going risk" of impermissible donations, the Electoral Commission says.

[EX Q]: Writing in the Sunday Times, the Plaid Cymru leader urged Wales to "speak with one voice". The UKIP leader and Welsh first minister will lock horns on Monday at an event in Cardiff. The UK is set to have a referendum by the end of 2017 on whether or not to remain a member of the European Union. Ms Wood said the bid for EU reform was "legitimate" but added any concerns were "far outweighed" by the benefits EU membership brings to Wales' agricultural sector, higher education institutions and transport infrastructure. She criticised Prime Minister David Cameron for allowing ministers to campaign for either side in the referendum, calling his decision "irresponsible and bizarre". And she said the issue would "alter the terms of the debate" in the lead up to National Assembly elections in Wales on 5 May.
[EX A]:
The EU is "too important to be discarded", Leanne Wood has said ahead of a head-to-head debate between Nigel Farage and Carwyn Jones on the issue.

