When the Poles took over Ghazni in the fall of 2008, this news story appeared in Reuters describing the situation at the time (October 30, 2008):

Polish troops took command of security in Ghazni on Thursday, a volatile area just two hour's drive southwest of Kabul where Taliban militants are gaining influence.

According to icasualties.org, 2005 was actually the most dangerous year in Ghazni, in terms of number of coalition deaths.  Here are more details from the Reuters story, which shows the Polish troops took over a dangerous and deteriorating area in 2008.

Some 1,200 troops moved into Ghazni four months ago under U.S. command and have repeatedly come under fire since then. In the last six months of their tour, which began in another eastern province, Polish troops have been in combat 600 times and have been hit by more than 100 improvised explosive devices. Six Polish soldiers have been killed and 20 wounded, their outgoing commander said.

The article reveals that Ghazni started deteriorating in tandem with the general decline in all of Afghanistan in 2006:

Two years ago, Ghazni was seen as largely secure but since 2006 Taliban militants have moved into the region from the south and east, attacking traffic on the highway, burning schools and kidnapping foreign civilians.

Afghans from Ghazni say it is no longer safe for them to visit villages even close to the provincial capital and local journalists say Taliban fighters can now be seen on the streets of the city after dark.

This story provides a narrative counter to the one often repeated in American media that Ghazni was a safe and peaceful district when the Poles took it over in 2008.