NEW IPSWICH — For the past 20 years, Shane Sirois has been helping people rid their houses of things that go bump in the night.

“I’ve been investigating homes since I was in my teens,” said Sirois, 36, a recent addition to the New Ipswich community, though he has lived in New Hampshire for the past 20 years.

His success in the paranormal research field has not gone unnoticed, having been a guest on many television and radio shows around the world, including multiple guest appearances on New Hampshire’s own Greg and the Morning Buzz on Rock 101. “We were the story that everybody wrote in about,” said Sirois, referring to his late 2009 appearance on the morning talk radio program, where he reviewed the movie Paranormal Activity for radio listeners.

Sirois radio appearance was so popular, that the radio audience selected his interview as one of the top five interviews conducted by Greg and the Morning Buzz for 2009.

Now that he has settled into his new home in New Ipswich, Sirois said he’s ready to ramp up his house investigations in the local area and beyond. “I put some things on hold because of this relocation, but I’m ready to get into full swing,” said Sirois, who conducts an average of five investigations a week. “I help a lot of other groups if they get stuck,” he said.

What makes Sirois stand out above other paranormal investigators is his motive. “I want to help people,” he said, whereas some other paranormal research groups are more interested in chasing the scare. “They treat [an investigation] like a Scooby Doo episode.”

With more than 1,000 house investigations under his belt, Sirois, a paranormal researcher, believes he’s discovered the reason paranormal activity haunts some people, yet never seems to bother others.

“There’s three major things that will escalate [paranormal activity],” Sirois said Tuesday, and they all have to do with the behavior of the people living in the house, rather than the house itself. “Heightened emotions such as negativity, paying attention to the entity and fear,” he said might result in unwanted houseguests from beyond.

“When it comes to nasty hauntings, it’s not the house that is haunted, it’s the people,” said Sirois. “The people maintain the environment. I do know, 100 percent, that if we take those things out of the home, [the entity] goes away every single time.”

Still, Sirois said, there are occasions when the house is the culprit behind the paranormal manifestations. “Some homes will be active no matter what,” he said. “Ninety percent of the time, those homes have a river or stream nearby.”

Sirois said while other paranormal research experts call these residual hauntings, he rebuffs the theory. “Your home records events from the past,” he said, “but your home’s not a DVR.”

Sirois bases his own theory on Einstein’s teaching of quantum physics, especially time slips.

“When you apply quantum physics,” explained Sirois, “a dramatic event creates ripples in space time. This allows us to witness something that happened at a different time.”

In many cases, Sirois said, apparitions that manifest through time slips do not seem aware of the people living in the house. “They don’t interact with you, he said, but they do feed off negative emotions. “Heightened emotions through dramatic events that create ripples in space-time. That allows the apparition to cross over.”

As an example, Sirois spoke about a house he was asked to investigate in Woonsocket, R.I. The couple that lived in the house had lived there for 11 years before they began experiencing paranormal activity, and had even sought help from a priest. “[The priest] got sick just like you see in the movies,” said Sirois. “He refused to go back into the house.”

Then Sirois was asked to investigate the house.

“The first time I walked in the door, a lamp flew across the room and hit [the man] in the leg,” said Sirois. “I asked him what had changed in his life to introduce negativity or stress - something life altering.” It turned out the man who currently lived in the house was a Vietnam veteran who had been recently diagnosed with pancreatic cancer. “With all that negativity, and just being stuck at home, he invited this thing in,” said Sirois. “It was the most active investigation I’ve ever done.”

Sirois said he was barely gone from the house for seven hours, when the man called him, scared out of his wits because he saw a frightening apparition hovering over his bed. “I could hear his voice trembling,” said Sirois. A couple of hours later, when Sirois returned to the man’s home, the man had physically changed. “Every bit of hair on his head had turned white,” said Sirois. “The day before he had dirty blonde hair, with some gray and light brown. It had only been 10 hours.”

Sirois advised the man that the only way to get rid of the negative spirits was to do something positive. “I told him you need to get out of the house and do something that gives you purpose,” said Sirois. “He got involved with saving a church that was going to be torn down. He was on TV and he felt great about himself.”

As a result, Sirois said the paranormal activity stopped in the man’s home, and his cancer went into remission. “The entity left the home because he changed his thinking,” said Sirois.

One apparition that Sirois has yet to encounter is the Blue Lady at the Wilton Cemetery.

“I have been investigating her for years,” said Sirois. “I have never witnessed anything from the Blue Lady,” but, he has seen two other apparitions at the cemetery. “I did see a little blonde girl there. She was like 7 years old. I saw her running down the hill.”

Sirois has also encountered an apparition of a bearded man at the same cemetery late one night, during the winter. He thought it was his friend, Paul Enos, a well-known paranormal investigator and author who was also researching the cemetery with Sirois at the time. “I was toward the road when I saw [the bearded man] near the circle in the back [of the cemetery].” Sirois said the man was pacing back and forth, as though he was looking for something he might have lost.

Sirois said he was about 20 feet away from him when he tripped on a root sticking out of the ground, causing him to look down. “When I looked back up, the guy was gone,” said Sirois.

During the summer that followed, Sirois said he visited the cemetery on several occasions, including the spot where he saw the bearded man pacing. “The place was always trampled,” said Sirois.

For more about Sirois research on paranormal activity visit the website http://trueghost.com.