This paper presents a securty and trust enhanced mobile agent (SATEMA) architecture. It investigates some of the design decisions encountered during the development of the architecture and its implementation. In particular, we consider design issues such as security and trust poilcy management, support for mutiple applications as well as with single and multiple hop scenarios using the proposed architecture. We discuss the design choices and describe the solutions that have been adopted in the architecture. We have implemented two applications namely a travel application and an auction application using this proposed SATEMA architecrure.