The Competition Commission has concluded that Scottish milk giant Robert Wiseman has been operating a monopoly north of the border. During an initial three-month inquiry it found that the company currently controls up to 85% of the Scotland's milk market. Having established the existence of a monopoly, the commission says it must now determine whether it had carried out any "uncompetitive" practices or had "exploited" its position. It further investigations will also centre on Wiseman's distribution of milk to supermarkets, other retailers and caterers. And it will seek to establish whether the firm's aggressive reputation acted as a barrier to other players entering the market. Wiseman has expanded rapidly over the last three years through both organic growth and acquisitions. In 1997 it bought Scottish Pride which gave it 75% of the market at the time. Wiseman, which is based in East Kilbride, near Glasgow, has recently made moves into the English market.