Here's a couple good links on Dirty Harry:
Helps campaign contributor secure government land for development
Reid is a longtime friend of Harvey Whittemore, a multimillionaire lobbyist and land developer from Nevada. From 2002 to 2006, Reid often used his influence in the Senate to help Whittemore attain government land for the purposes of building a massive development in the barren Coyote Springs Valley in Nevada. Reid even pushed for Whittemore to be granted the rights for free; ultimately, he paid the government $10 million.
As the project advanced, Reid received tens of thousands of dollars in campaign contributions from Whittemore. The contributions went both to Reid's Senate campaigns and his leadership fund, which helps fund the campaigns of other Senate Democrats.
The relationship between the two goes even deeper. Reid's son, Leif Reid, is Whittemore's personal lawyer and has represented the developer throughout the Coyote Springs project and his negotiations with federal officials.
In response, a spokesman for Reid said, "There is a reason every major Republican and Democratic officeholder in Nevada has fought for Coyote Springs---it will create jobs and make the state an even better place to live and raise a family." 
Improper reporting of land deal
In 1998, Reid bought two parcels of land on the outskirts of Las Vegas. He bought one parcel himself, and another jointly with his partner and longtime friend Jay Brown. In 2001, Reid sold the land to a limited liability company created by Brown for an equivalent share of the company. He did not disclose the sale to Congress, however, and continued to list the land as a personal asset. When the land sold for over $1 million dollars in 2004, Reid received $1.1 million and listed the transaction as a personal land sale. Reid's name was not formally attached to Brown's company in any way. Reid claimed that this was because the two men had known each other for 35 years and trusted each other completely. 
On October 16, 2006, Reid announced that he was filing a correction to his ethics form that would better represent the actualities of the arrangements surrounding the land deal. He also stated that he would be amending the reports to include two other small holdings that had been previously unreported. 
Earmark for a bridge near personal land
In November 2006, the Los Angeles Times reported that Reid had earmarked to a bridge building project near where he held 160 acres of land. The bridge is intended to span the Colorado River between Laughlin, Nevada and Bullhead City, Arizona. Reid's land is several miles from the proposed site of the bridge in Arizona. His office explained that the new bridge was necessary due to the Hoover Dam's closure to truck traffic due to terrorism fears and categorically denied that it had anything to with his landholdings.
In January 2007, Reid's 2002 acquisition of the property came under scrutiny as he only paid a mere $166 an acre for the 160 acre parcel.
Reid's interest in the barren parcel dates back to the period of 1979 through 1982, when he and Clair Haycock bought the 160 acres. Haycock bought a three-eighths interest, equivalent to 60 acres, for $90,000 — $1,500 an acre. Reid, then a Nevada lawyer and political figure, bought the other five-eighths, the equivalent of 100 acres. They did not divide the parcel.
Allegations have been made that Reid introduced legislation on behalf of Haycock, who was a "lubricants dealer" in las Vegashttp://www.sourcewatch.org/index.php/Harry_Reid#Improper_reporting_of_land_deal