private bool AllBodySamplesCollected()
        {
            bool result = true;

            var sampleAggregates = _BodyManager.Select(o => new
            {
                TrackingId       = o.Key,
                SamplesCollected = _FacePhotos.Where(p => p.TrackingId == o.Key).Count()
            });

            foreach (var item in sampleAggregates)
            {
                if (item.SamplesCollected < _TotalSamples)
                {
                    result = false;
                    break;
                }
            }

            return(result);
        }