When a Colorado man thought his wife might be having an affair, he asked a Denver police officer to dig up personal details about the man he suspected. The husband then drove by his house and threatened him, according to a civilian oversight agency’s report.

Another Denver police officer used official databases to get the private telephone number of a hospital employee he had casually chatted with while investigating a sexual assault. He then left the woman a voice mail message that upset her.

When caught, the officers were given written reprimands, and one was fined.

These 2015 cases were highlighted in the annual report released on Tuesday by the Denver Office of the Independent Monitor, a civilian oversight agency, that said the city’s Police Department must impose harsher punishments to deter officers from mining law enforcement databases for their personal use.

There have been 25 cases of database misuse in the Police Department in the past 10 years, including three in 2015, the report said.