York City's Narcotics Unit arrested a dozen people on separate stings over the past two weeks, with those arrested representing the diversity of people involved in the illegal drug trade, police said.

"Just the amount of women and older people involved," said Detective Andrew Shaffer. "It just goes to show the wide range of people who distribute heroin or illegal drugs, when most of it's attributed to younger males. That's a fallacy that people believe."

Despite the common perception of drugs being a trade for younger males, the arrests made were "pretty typical" for a two-week period in the Narcotics Unit, he said.

The arrests are typically made after individual sources tell police they're aware of drug activity. Police conduct surveillance, which is sometimes followed by undercover purchase, Shaffer said.

Among those arrested were three women and four people older than 50.

Women were involved in the two largest monetary-value arrests.

Police said they seized $5,200 in marijuana from the home of Donna Perez, 25, of 53 Eberts Lane. She was arrested at her house and charged with possession with intent to deliver "numerous varieties" of marijuana, Shaffer said.

Bobbi Brooks, 31, of 301 N. Newberry St., was arrested in the 500 block of Maryland Avenue. She was charged with delivery and possession with intent to deliver heroin. Police said they seized $3,860 in heroin, $671 in cash, and a 1999 Jeep.

Police said they also arrested the following individuals.

* Rigoberto Monier, 66, of 310 W. Philadelphia St. Arrested in the first block of North Newberry Street and charged with delivery of cocaine. Police said they seized $400 in cocaine and $79 cash.

* Luis Cordero, 37, of 710 W. Mason Ave., arrested in 300 block of South Pine Street. Charged with delivery of heroin. Police said they seized $200 of heroin.

* Theron Robinson, 30, of 318 S. George St., arrested in the 500 block of Wilson Avenue. Charged with delivery of marijuana. Police said they seized $50 of marijuana.

* Katherine Almeyda, 48, of 637 W. Princess St., arrested in the first block of South Pershing Avenue. Charged with delivery and possession with intent to deliver heroin. Police said they seized: $900 in heroin, $415 cash, and a 2006 Honda.

* Felex Perez, 58, of 115 S. Pershing Ave. 2nd floor, Carlos Vazquez, 53, of 90 N. Newberry St., and Angel Cruz, 55, of 364 W. Gas Ave. were arrested in the 100 block of South Pershing Avenue. Perez was charged with possession with intent to deliver heroin. Vazquez and Cruz were charged with possession of heroin. Police said they seized: $1,800 in heroin and $188 cash.

* Antoin Bailey, 36, of 41 N. Belvidere Ave. Arrested in the first block of North Belvidere and charged with delivery of heroin. Police said they seized: $80 in heroin.

* Hardira Jennings, 38, of 430 E. Prospect St. Arrested in the 400 block of East Prospect Street and charged with delivery of heroin. Police said they seized: $200 in heroin.

* Tyrone Lowe, 39, of Harrisburg. Arrested in the first block of North Harrison Street and charged with delivery of heroin. Police said they seized $200 in heroin.

Assisting in the arrests were York City's Nuisance Abatement and West End Neighborhood Units, Springettsbury Township Police Department, West Manchester Township Police Department, and York Area Regional Police Department.

- Reach Christina Kauffman at ckauffman@yorkdispatch.com.