Police across much of south-central Pennsylvania are ramping up patrols and DUI checkpoints for the July Fourth holiday weekend.Some counties already increased patrols earlier this week and others are starting Friday.WGAL has already confirmed police in the following counties have ramped up sobriety checkpoints:AdamsDauphinLancaster York Those checkpoints are used by police to try to find impaired drivers to get them off the road, while also discouraging others from driving impaired.DUI victimsThe Kain Memorial honors innocent victims who lost their lives due to alcohol or drug-related crashes. Missy Sweitzer, of the Kain Memorial, is asking those who choose to drink this weekend to make good decisions."First of all, plan ahead. If you don't plan ahead, enforcement is going to be out there and they are going to be ready for you,” she said. “Unfortunately, if you have a bad consequence of your decision, you could very well put an instant life on the Kaine Memorial."Police recommend to plan a safe ride home if you plan to drink, such as using a ride-share service or having a designated driver. And if you’re hosting a party, make sure your guests leave with a sober driver.