ALAMEDA COUNTY (KRON) — The California Highway Patrol will be out in full force this Memorial Day holiday weekend in hopes to keep everyone safe.

The CHP will be cracking down on drivers who are speeding or drinking and driving.

There are heightened safety concerns with the recent series of freeway shootings in the East Bay, particularly on Highway 4 and Interstate 80.

Officers have arrested five people in connection with those shootings that killed four people and left 12 others injured.

Watch the above video to see Terisa Estacio’s ridealong with the CHP.