Business houses in the capital have been warned against door-to-door distribution of leaflets advertising their products. The Emir's Office here has sent a directive to the Riyadh Chamber of Commerce and Industry (RCCI) urging the relevant bodies to strictly abide by lawful methods for the distribution of fliers and pamphlets. The directive calls for the reactivation of the decision a few years ago banning the distribution of advertising publications to private homes. The Emir's Office stressed the importance of strictly enforcing penalties against advertising agencies, media companies, malls, restaurants and groceries violating the set guidelines. Non-adherence to the rules poses a great security threat to the public, the directive said. The distribution of pamphlets door-to-door has negative social, security and moral implications, it said. The RCCI has urged members to distribute their publications through proper channels such as post offices and different media outlets. It also urged private educational and training institutions to fully cooperate with the responsible authorities to prevent private teachers from distributing their advertisements in malls, and supermarkets and from posting them on walls. Also, it called upon the public to join the fight against unlicensed and untrained private teachers who exploit families and cause great damage to the education process.