Denver police have arrested a veteran deputy sheriff on investigation of sexual assault on a child by a person in a position of trust, authorities said MondayMark Edwin Davis, 48, was arrested at 1:40 p.m. Sunday at his home in Denver's Montbello neighborhood, according to arrest records. His arrest affidavit was sealed.Police said the investigation began after an adult came forward to report about suspicious behavior.Davis, who is 5 feet 11 and weighs 320 pounds, was held Monday at the Jefferson County Jail as a security precaution, police said. His bond was set at $200,000.Davis has worked more than 14 years as a Denver jail officer in the adult male housing population, authorities said. He was placed on leave from the sheriff's department pending the results of the investigation."Because of the nature of the investigation, detectives are concerned that Davis may have victimized other children over the years, some of which may be adults now," Denver police said in a statement sent to 7NEWS.Denver police said Davis has lived in the Montbello neighborhood for more than 20 years.One neighbor told 7NEWS Reporter Jaclyn Allen she does not believe the accusations against Davis."I've known him since he's lived there," said Liz Boyd. "He's a wonderful person. I can call on him to help me do anything.""I just think he's innocent," she said.Police are releasing few details about the investigation, but they did say the allegations do not involve his official duties or responsibilities as a deputy and did not occur while he was on duty.A Denver police spokesman said investigators have no indication that Davis worked with young people as a sports coach or a similar role."We're currently looking into his history, but we have nothing to tell us he was a coach or anything like that," police spokesman Sonny Jackson told 7NEWS.Jackson declined to discuss where Davis met alleged victims, saying that releasing such details could violate state law prohibiting authorities from identifying child abuse victims.Davis was cited for violating Denver's pit bull ban in July 2005, but the charge was later dismissed by the City Attorney's Office, according to court records.In November 2004, Davis was cited for speeding 25 mph to 39 mph over the speed limit in Denver, court records said. But he pleaded guilty to the lesser offense of speeding 15 mph to 19 mph over the speed limit and was fined $166.Police are asking for anyone who has information related to Mark Davis to contact the Denver Police Department at 720-913-2000.