There has been a significant uptick in stolen vehicles and thefts from vehicles throughout Brookfield over the past week.  Police say several vehicles have been stolen and numerous unlocked vehicles were entered and items removed.  Residents are being reminded of simple steps to prevent becoming a victim of this crime of opportunity.  Drivers should lock all unoccupied vehicles, not leave valuables in the car and report suspicious activity to police immediately.  As for securing keys, police suggest placing modern Fob Type Keys in a Faraday Bag or Box in the house.