Checking the details of this story, it isn't the UK laws that are weak but, in this case, those of Ukraine. Some UK registered companies (not regisitered to sell arms by the UK) have been awarded licenses to export arms from Ukraine to various countries, some of which are on the FCO's list of countries for whom arms exports are banned by the UK. Any UK companies or individuals who are subsequently found to have broken UK law will be prosecuted. I don't know how Amnesty expects the UK authorities to know what individuals or companies get up to in other countries - perhaps Amnesty should lean on countries like Ukraine who have exported weapons to almost anyone in recent years. Amnesty's other complaint concerns the export of non-militray items that may be used by military or militias in countries with nasty regimes. They quote the export of Landrover components to Turkey, which were subsequently found in vehicles used by authorities in Uzbekistan. Given that almost any product might be used by secret policemen in the course of their work, one would have to stop exporting anything to anywhere to be sure that nothing was being further exported to undesirable regimes. This is clearly not viable and Amnetsy should redirect their efforts to those intermediate countries where arms export control is not taken seriously - or maybe this would not suit their agenda.