It's a CRIME ALERT we've seen once before, a smash- and-grab at several Westside stores Now, the Jacksonville Sheriff's Office is reporting even MORE stores have been targeted in the same way. What's worst, the sheriff's office says it is seeing a SECOND type of theft, targeting more than a dozen local businesses. Officers are trying to get the message out, and urging business owners to protect their property. Channel 4's Ashley Mitchem spoke to the Sheriff's Office about both crime patterns and how you can prevent your business from falling victim. 3 3 0-08These are just three of the five, so called smash-and-grabs police say 3 3 0-08These are just three of the five, so called smash-and-grabs police say occured at Jacksonville conveinence and dollar stores, over the past two weeks.It's just one of two crime trends police have seen, targeting businesses.Jacksonville Sheriff's Office says, in all of these cases, a stolen, older model pickup truck was used to break in the stores' front door, so the crooks could attempt to steal what's inside.They happened between the hours of 2 and 5 A-M.And the suspects have been described as one or two white males with a possible third suspect of an unknown race. Investigators recommend business owners consider protecting their property with bollards.Shannon Hartley, Jacksonville Sheriff's Office 54:24 They essentially create a blockade in front of a fragile entry point like a glass front or a glass door SU: 58:21 This is an example of a Bollard it prevents a vehicle from breaking through the front entrance of a building The second crime trend involves these backflow valves, attached to businesses. At least 16 have been stolen this year...four just in the last eight days.55:09 Presumably they are taking that and trying to pawn it off and at a secondary metal recycler The thefts all happened overnight.56:24 They really don't get that much money for the metal in return it just seems to be an easy crime of opportunity) The Sheriff's Office says there are ways to prevent this crime from happening to you: 1. Enclose the backflow valve with a protective cage.2. Record model and serial numbers of all backflow devices.3. Paint the unit to match the exterior of the business 4. Post signs warning there is video surveillance on the units.5. Camouflage the unit by planting landscape near the backflow.The Sheriff's Office says it's a lot more affordable to use preventative measures than to fix the building after the theft. AM C4 TLS.