A 37-year-old man remains in custody after being charged with possessing explosives. Police raided a north Toronto home Tuesday as part of a G20-related investigation.

He faces a total of six charges, including intimidating a justice system participant with threats and by watch and beset. He has also been charged with attempting mischief. He will be back in court Saturday for a bail hearing.

After the court appearance, lawyer Kevin Tilley told reporters: "At this point we have very little information about the allegations themselves. There's very little I can say about the investigation."

Tilley is a lawyer who has been offered to represent people arrested in connection with the G20 Summit. However, he said his involvement with his client is not related.

ISU spokesperson Const. Michelle Murphy told CTV.ca she could not explain the charges because they deal with evidence in the case.

"To protect the integrity of the investigation, further details will not be released," says a news release issued Wednesday morning. "This investigation is part of the Toronto Police Service's ongoing effort to ensure a safe and secure G20 Summit."

Police also said that the public is not in danger as a result of the incident.

The raid took place at around 2 p.m. on Elderwood Drive, a street located in an upscale neighbourhood in the Bathurst Street and Lawrence Avenue area.

Suspect blogs

The suspect, Byron Sonne, works as a computer security expert. He is also listed as a private investigator and has commented on several online blogs.

A search also has Sonne and a woman listed as the owners of the Elderwood Dr. home.

An online search turned up comments, purportedly made by Sonne, musing about such topics as anarchy and chaos, though not in specific reference to world politics.

"I appreciate the role of chaos and anarchy in the universe, we simply can't have order without disorder and vice-versa," the 2006 blog posting says. "There's no way to separate the two, or eliminate one or the other ... Destruction can be good."

Hacklab.to, an online blog which lists Sonne as a member, issued a statement Wednesday afternoon saying they are "concerned" for the man.

"Byron is innocent until proven guilty and as a member of the lab and a friend, we are concerned for him," the statement says.

Hacklab, which is run out of an office in Toronto's Kensington neighbourhood, describes itself as a non-profit organization which encourages people to "socialize, share knowledge and work together on technology projects."

Toronto technology commentator Jesse Hirsch said Sonne had been critical of the billion-dollar cost of the G8/20 Summits and had wanted to monitor security forces to see if the expense was justified.

"The optimist in me is hoping this is a political stunt that got out of control," he said.

Sonne appeared in a North York courtroom wearing a black T-shirt. He sat in the prisoner's box flanked by three security guards but appeared calm as he scanned the courtroom.

The G8 and G20 summits -- a conference for leaders of the world's wealthiest countries -- takes place in Huntsville, Ont. and Toronto from June 25 until June 27.

The ISU is led by the RCMP and includes units from the Toronto police, the Ontario Provincial Police, the Canadian Forces and Peel Regional police.

With a report from CTV Toronto's Austin Delaney and files from The Canadian Press