内容摘要：The project was a collaboration between art and science organisation Invisible Dust and Yorkshire Wildlife Trust.

The project was a collaboration between art and science organisation Invisible Dust and Yorkshire Wildlife Trust.

But Matt Jukes, the UK's Head of Counter Terrorism Policing, says it is relatively easy for police to infiltrate criminal groups because they are not ideologically aligned with the Iranian regime.It is what he calls a "creeping penetration" by Iran, which the police are trying to disrupt.

Searches are continuing at a number of addresses after five men were arrested on Saturday over an alleged terror plot in the UK.Home Office minister Dan Jarvis said hundreds of officers were carrying out forensic investigations and collecting evidence at different sites across the country during a Commons statement on Tuesday.The men, who are Iranian nationals, are suspected of plotting to target a specific premises, Jarvis told MPs - though said he could not disclose where.

He described the arrests as "some of the largest counter-state threats and counter-terrorism actions that we have seen in recent times".He told the Commons: "What now follows is an incredibly complex set of investigations involving hundreds more officers carrying out forensic searches, collecting vital evidence across different sites across the country, and securing witness statements backed up by the continued efforts of our security and intelligence agencies.

"This is careful, painstaking work."

The arrests were carried out in west London, Swindon, Rochdale, Stockport and Manchester.Since then, it seems the Iranian regime has been hiring criminal organisations to carry out kidnappings and killings in an attempt to avoid linking the attacks back to the regime.

But Matt Jukes, the UK's Head of Counter Terrorism Policing, says it is relatively easy for police to infiltrate criminal groups because they are not ideologically aligned with the Iranian regime.It is what he calls a "creeping penetration" by Iran, which the police are trying to disrupt.

Searches are continuing at a number of addresses after five men were arrested on Saturday over an alleged terror plot in the UK.Home Office minister Dan Jarvis said hundreds of officers were carrying out forensic investigations and collecting evidence at different sites across the country during a Commons statement on Tuesday.