In most cases in the United States, store employees and managers have certain powers of arrest. Store officials may detain for investigation (for a reasonable length of time), the person who they have probable cause to believe is attempting to take or has unlawfully taken merchandise (see shopkeeper's privilege). Store employees may also have citizen's arrest powers, but absent a statute granting broader authority a citizen's arrest power is normally available only for felony offenses, while shoplifting is usually a misdemeanor offense. In the United States, store employees who detain suspects outside of and inside the store premises are generally granted limited powers of arrest by state law, and have the power to initiate criminal arrests or civil sanctions, or both, depending upon the policy of the retailer and the state statutes governing civil demands and civil recovery for shoplifting as reconciled with the criminal laws of the jurisdiction. In the United Kingdom, an offence involving shoplifting may be charged under Section 1 of the Theft Act 1986; alternatively, if the goods stolen are worth less than £200, a person may be charged under Section 176 of the Anti-Social Behaviour, Crime and Policing Act. Upon conviction, the maximum penalty is a fine or up to six months in prison if the goods stolen are worth less than £200; if they are worth more than £200, the maximum penalty is seven years in prison. In the Islamic legal system called Sharia, "hudud" (meaning limits or restrictions) calls for "Sariqa" (theft) to be punished by amputation of the thief's hand. This punishment is categorized as "hadd", meaning a punishment that restrains or prevents further crime. Sariqa is interpreted differently in different countries and by different scholars, and some say it does not include shoplifting. But, in Saudi Arabia shoplifters' hands may be amputated. Shoplifting may be prevented and detected. Closed-circuit television (CCTV) monitoring is an important anti-shoplifting technology. Electronic article surveillance (EAS) is another method of inventory protection. Radio-frequency identification (RFID) is an anti-employee-theft and anti-shoplifting technology used in retailers such as Walmart, which already heavily use RFID technology for inventory purposes. Loss prevention personnel can consist of both uniformed officers and plain-clothed store detectives. Large department stores will use both and smaller stores will use one or the other depending on their shrink strategy. Store detectives will patrol the store acting as if they are real shoppers.