Biggs, A. D.Ivison, R. J.Ibar, E.Wardlow, J. L.Dannerbauer, H.Smail, IanWalter, F.Weiss, A.Chapman, S. C.Coppin, K. E. K.De Breuck, C.Dickinson, M.Knudsen, K. K.Mainieri, V.Menten, K.Papovich, C.2014-03-122014-03-122010-12-01Biggs, A. D., R. J. Ivison, E. Ibar, J. L. Wardlow, et al. 2010. "The LABOCA survey of the Extended Chandra Deep Field South - radio and mid-infrared counterparts to submillimetre galaxies." Monthly Notices of the Royal Astronomical Society 413:2314.0035-8711http://hdl.handle.net/10222/45368http://dx.doi.org/10.1111/j.1365-2966.2010.18132.xWe present radio and infrared (3.6-24um) counterparts to submillimetre galaxies (SMGs) detected in the Extended Chandra Deep Field South with the LABOCA 870-um bolometer camera on the 12-m Atacama Pathfinder Experiment. Using the Very Large Array at 1.4GHz and Spitzer we have identified secure counterparts to 79 of the 126 SMGs (SNR>3.7, S_870>4.4mJy) in the field, 62 via their radio and/or 24-um emission, the remainder using a colour-flux cut on IRAC 3.6- and 5.8-um sources chosen to maximise the number of secure, coincident radio and 24-um counterparts. In constructing our radio catalogue, we have corrected for the effects of `flux boosting', then used the corrected flux densities to estimate the redshifts of the SMGs based on the radio/submm spectral indices. The effect of the boosting correction is to increase the median redshift by 0.2 resulting in a value of z=2.2 (+0.7-0.8) (1-sigma errors) for the secure radio counterparts, in agreement with other studies, both spectroscopic and photometric.article4132314