This is a third article in our series of blog articles illustrating Rjags programs for diagnostic meta-analysis models. We previously looked at the Bayesian bivariate model and the Bayesian HSROC model. In this article we describe how to carry out Bayesian inference for the Bivariate latent class meta-analysis model (Xie, Sinclair and Dendukuri(2017)) when a perfect reference test is not available.