The public is being offered additional cash to help police identify a dozen suspects wanted for bank robberies that occurred across the Greater Toronto Area over the past seven years.

Toronto police Staff Sgt. Mike Earl told reporters Tuesday that investigators have run out of leads on the cases, though they are hoping that the public can help them out.

"What we’re looking for is that phonecall…to try and solve these robberies, one or more of them because all of the leads have gone cold," Earl said.

The Canadian Bankers Association is providing extra funds, so that tipsters will be paid 50 per cent more than what Crime Stoppers would normally pay them for information leading to the arrest and conviction of the so-called "dirty dozen" suspects.

Earl said that years may have gone by, but police are capable of cracking cases that occurred in the past.

Staff Insp. Mike Earl outlines 'dirty dozen' bank-robbing suspects

Staff Insp. Mike Earl says that police have run out of leads in a dozen GTA bank robberies that occurred between 2006 and the present. (CBC)

"We're not going to stop looking for these individuals," he said.

In chronological order, police are looking for info on the following robberies:

Nov. 28, 2006

The suspect passed a note to a teller inside the TD Bank at 939 Lawrence Avenue East in Toronto. He indicated that he had a gun. The suspect was given money inside a dye bag — some of those damaged bills later showed up in Wynford Drive and Eglinton Avenue East area in Toronto.

Police say the suspect is described as a six-foot male in his mid-30s, who is "a little chubby" — weighing an estimated 200 pounds.

Dec. 18, 2009 and February 11, 2010

Both robberies occurred in Brampton — the earlier one at the TD Bank at 10908 Hurontario St., the latter at the Royal Bank at 3068 Mayfield Rd. Both times, the suspect passed a note to a teller

The suspect has been described as a black male, who is 25 to 30 years old and is 5'9" to 5'11" tall. He wore a Cleveland Browns cap in one incident and an Atlanta Braves cap in the other

July 12, 2010

The suspect is accused of five bank robberies in the same day, which occurred in Burligton, Oakville and Mississauga. It is alleged that he used a note demanding a specific amount of money. Police say he indicated he had a gun and threated to kill others.

The suspect is a 5'6" black male, who weighs about 130 pounds and has a gap in his front teeth. He has a quiet voice, police say.

Oct. 1, 2010

Police say the suspect entered a CIBC bank located at 946 Lawrence Avenue East in Toronto. He used a note and indicated that he had a gun.

The suspect is described as a while male, 24 to 30 years of age, who is between 5'11" and 6'1" tall. He was unshaven and had short, dark hair. He wore a Blue Jays baseball cap, a black hoodie and carried a black laptop-type bag.

Oct. 7, 2010

The suspect went into a TD Bank at 689 Evans Ave. in Toronto, showed a note indicating he had a gun. No weapon was seen.

Police say the suspect is a white male in his mid-40s with "bright blue eyes." He is 5'8" to 5'10" and weighs between 170 and 190 pounds.

Dec. 3, 2010, with three additional robberies in January 2011

The suspect has been linked to two CIBC robberies in Hamilton and two additional CIBC robberies in Toronto. Police say the suspect kept a cap tilted low over his face, used a note to indicate the robbery and also indicated he was armed.

A white male in his mid-30s has been identified as the suspect. He is 5'8" to 5'11" tall, has a stocky build and is estimated to weigh 200 pounds. He has a moustache, a goatee and wears glasses with dark rims.

Feb. 24, 2011

The suspect entered at TD Bank located at 75 Bayly St. W., in Ajax. He used a note.

The suspect is a black male in his 40s, who is 5'6" to 5'7" tall. Surveillance photos showed him wearing a light-coloured baseball cap and a jacket.

July 13, 2011

A suspect entered a TD Bank at 10381 Bayview Ave., in Richmond Hill and produced a note indicating that he had a weapon.

Police say the suspect is a 5'10" male in his late 20s, who has a shaved head with a thick scar running from his left ear to his neck.

February 3, 2012, as well as Feb. 6, 2012 and Feb. 9, 2012

Police say the suspect first hit a Scotiabank branch at 126 Castlemore Ave., in Markham, followed by Royal Bank branches at 9325 Yonge St. in Richmond Hill and at 7675 Markham Road in Markham. The suspect entered the banks, yelled that he wanted cash, pointed a handgun and "threatened to shoot everyone," police say.

The suspect is a 25-to-35-year-old white male, who stands between 5'6" and 6' tall. He has an Eastern European accent.

August 2, 2012

A male suspect told the teller he was robbing the Scotiabank branch at 279 King St. E. in Toronto. He then showed a note saying he had a gun.

The suspect a male with a light black complexion. He is believed to be 28 to 35 years old and stands between 5'10" and 6' tall. Police say he has a thin face and "a distinctive nose."

Dec. 21, 2012

The suspect went into the Scotiabank branch at 2479 Kingston Rd. in Toronto, and handed the teller an orange bag to put the money in.

The suspect dressed in a toque with a skull-and-bones print on it. He is described as a white male, who is between 40 and 50 years old. He is either 5'7" or 5'8" tall.

April 13, 2013

The suspect used a note in the robbery at the CIBC located at 2340 Finch Avenue West in Toronto.

The suspect is described as a 5'6" white male with a dark complexion, who is approximately 30 to 40 years old.

Watch the YouTube video below to see the images of the suspects in the robberies outlined above:

With a report from the CBC's Ivy Cuervo