The latest issue of Comparative Legal History is a special edition on Lay Participation in Legal 
Systems:
Markus Dubber & Heikki Pihlajamäki: ‘Lay participation in modern law: a comparative historical analysis’
David Mirhady: ‘Knowing the law and deciding justice: lay expertise in the democratic Athenian courts’
Anthony Musson: ‘Lay participation: the paradox of the jury’
Niamh Howlin: ‘The politics of jury trials in nineteenth-century Ireland’ (limited free access here)
Simon Stern: ‘Forensic oratory and the jury trial in nineteenth-century America’
Markus Dubber: ‘The schizophrenic jury and other palladia of liberty: a critical historical analysis’