TOPSHAM, Maine — Police on Saturday arrested a Brunswick man who had been held at gunpoint by a resident after the resident had allegedly found him “sitting on his marijuana plants.”

Robert Henson, 33, was charged with felony theft.

At 3:35 a.m. Saturday, police received a call from a Cathance Road resident saying he was holding a suspect at gunpoint. Lt. Fred Dunn said the man told police he awoke to a noise in the backyard, went outside to investigate and had taken a firearm with him for the safety of himself and his family.

The man had noticed two of his medical marijuana plants were missing from the backyard, and he followed a trail of dirt about 60 yards “and found a guy sitting on his marijuana plants,” Dunn said.

Henson allegedly began to get aggressive toward the homeowner, who held him there until police arrived to find the homeowner holding a handgun. Officers had him lower the gun and unload it.

Henson, Dunn said, told police he was snooping on his girlfriend and couldn’t explain why he was sitting on marijuana plants.

The resident told police the plants were valued at $1,000 each. A third plant was damaged. There were allegedly two other suspects involved who were not found.

The homeowner called back Sunday morning and reported that someone returned overnight, used a ladder to get over a fence and took another four marijuana plants.

Police still have no suspects in this incident.